Significance: Constructed as a railroad loading platform, Building 223 is associated with the large-scale expansion of Frankford Arsenal that resulted from the United States' entry into World War I. Survey num More
Significance: Constructed as a railroad loading platform, Building 223 is associated with the large-scale expansion of Frankford Arsenal that resulted from the United States' entry into World War I. Survey num More
Significance: Constructed as a railroad loading platform, Building 223 is associated with the large-scale expansion of Frankford Arsenal that resulted from the United States' entry into World War I. Survey num More
Significance: Constructed as a railroad loading platform, Building 223 is associated with the large-scale expansion of Frankford Arsenal that resulted from the United States' entry into World War I. Survey num More
Significance: Constructed as a railroad loading platform, Building 223 is associated with the large-scale expansion of Frankford Arsenal that resulted from the United States' entry into World War I. Survey num More
Significance: The Frankford Elevated is significant as an early twentieth-century mass transit system in Philadelphia that had significant local elevated includes structures and station buildings that are repre More
Significance: The Frankford Elevated is significant as an early twentieth-century mass transit system in Philadelphia that had significant local elevated includes structures and station buildings that are repre More
Significance: The Frankford Elevated is significant as an early twentieth-century mass transit system in Philadelphia that had significant local elevated includes structures and station buildings that are repre More
Significance: The Frankford Elevated is significant as an early twentieth-century mass transit system in Philadelphia that had significant local elevated includes structures and station buildings that are repre More
Significance: The Frankford Elevated is significant as an early twentieth-century mass transit system in Philadelphia that had significant local elevated includes structures and station buildings that are repre More
Significance: The Frankford Elevated is significant as an early twentieth-century mass transit system in Philadelphia that had significant local elevated includes structures and station buildings that are repre More
Significance: The Frankford Elevated is significant as an early twentieth-century mass transit system in Philadelphia that had significant local elevated includes structures and station buildings that are repre More
Significance: The Frankford Elevated is significant as an early twentieth-century mass transit system in Philadelphia that had significant local elevated includes structures and station buildings that are repre More
Significance: The Frankford Elevated is significant as an early twentieth-century mass transit system in Philadelphia that had significant local elevated includes structures and station buildings that are repre More
Significance: The Frankford Elevated is significant as an early twentieth-century mass transit system in Philadelphia that had significant local elevated includes structures and station buildings that are repre More
Significance: The Frankford Elevated is significant as an early twentieth-century mass transit system in Philadelphia that had significant local elevated includes structures and station buildings that are repre More
Significance: The Frankford Elevated is significant as an early twentieth-century mass transit system in Philadelphia that had significant local elevated includes structures and station buildings that are repre More
Significance: The Frankford Elevated is significant as an early twentieth-century mass transit system in Philadelphia that had significant local elevated includes structures and station buildings that are repre More
Significance: The Frankford Elevated is significant as an early twentieth-century mass transit system in Philadelphia that had significant local elevated includes structures and station buildings that are repre More
Significance: The Frankford Elevated is significant as an early twentieth-century mass transit system in Philadelphia that had significant local elevated includes structures and station buildings that are repre More
Significance: The Frankford Elevated is significant as an early twentieth-century mass transit system in Philadelphia that had significant local elevated includes structures and station buildings that are repre More
Significance: This three-span stone arch bridge is the oldest surviving roadway bridge in America. It was originally an important crossing along part of the King's Highway connecting Philadelphia to Bristol - o More
Significance: This three-span stone arch bridge is the oldest surviving roadway bridge in America. It was originally an important crossing along part of the King's Highway connecting Philadelphia to Bristol - o More
Significance: This three-span stone arch bridge is the oldest surviving roadway bridge in America. It was originally an important crossing along part of the King's Highway connecting Philadelphia to Bristol - o More
Significance: This three-span stone arch bridge is the oldest surviving roadway bridge in America. It was originally an important crossing along part of the King's Highway connecting Philadelphia to Bristol - o More
Significance: This three-span stone arch bridge is the oldest surviving roadway bridge in America. It was originally an important crossing along part of the King's Highway connecting Philadelphia to Bristol - o More
Significance: This three-span stone arch bridge is the oldest surviving roadway bridge in America. It was originally an important crossing along part of the King's Highway connecting Philadelphia to Bristol - o More
Significance: This three-span stone arch bridge is the oldest surviving roadway bridge in America. It was originally an important crossing along part of the King's Highway connecting Philadelphia to Bristol - o More
Significance: This three-span stone arch bridge is the oldest surviving roadway bridge in America. It was originally an important crossing along part of the King's Highway connecting Philadelphia to Bristol - o More
Significance: Building 213, constructed in 1903 as a box and packing shop, and Building 214, constructed in 1918 as a small arms ammunition storehouse, are connected buildings associated with the expansion of f More
Significance: Building 213, constructed in 1903 as a box and packing shop, and Building 214, constructed in 1918 as a small arms ammunition storehouse, are connected buildings associated with the expansion of f More
Significance: Building 213, constructed in 1903 as a box and packing shop, and Building 214, constructed in 1918 as a small arms ammunition storehouse, are connected buildings associated with the expansion of f More
Significance: Building 213, constructed in 1903 as a box and packing shop, and Building 214, constructed in 1918 as a small arms ammunition storehouse, are connected buildings associated with the expansion of f More
Significance: Building 213, constructed in 1903 as a box and packing shop, and Building 214, constructed in 1918 as a small arms ammunition storehouse, are connected buildings associated with the expansion of f More
Significance: Building 213, constructed in 1903 as a box and packing shop, and Building 214, constructed in 1918 as a small arms ammunition storehouse, are connected buildings associated with the expansion of f More
Significance: Building 213, constructed in 1903 as a box and packing shop, and Building 214, constructed in 1918 as a small arms ammunition storehouse, are connected buildings associated with the expansion of f More
Significance: Building 213, constructed in 1903 as a box and packing shop, and Building 214, constructed in 1918 as a small arms ammunition storehouse, are connected buildings associated with the expansion of f More
Significance: Building 213, constructed in 1903 as a box and packing shop, and Building 214, constructed in 1918 as a small arms ammunition storehouse, are connected buildings associated with the expansion of f More
Significance: Building 213, constructed in 1903 as a box and packing shop, and Building 214, constructed in 1918 as a small arms ammunition storehouse, are connected buildings associated with the expansion of f More
Significance: Building 213, constructed in 1903 as a box and packing shop, and Building 214, constructed in 1918 as a small arms ammunition storehouse, are connected buildings associated with the expansion of f More
Significance: Building 319 is associated with the continued growth of Frankford Arsenal, the U.S. Army's principal manufacturer of small arms ammunition, during the twentieth century. Survey number: HAER PA-74 More
Significance: Building 319 is associated with the continued growth of Frankford Arsenal, the U.S. Army's principal manufacturer of small arms ammunition, during the twentieth century. Survey number: HAER PA-74 More
Significance: Building 319 is associated with the continued growth of Frankford Arsenal, the U.S. Army's principal manufacturer of small arms ammunition, during the twentieth century. Survey number: HAER PA-74 More
Significance: Building 30 served as the quarters for the post armorer. Building 31 is an addition, constructed in 1909. The two buildings are associated with the nineteenth and twentieth century history of Fr More
Significance: Building 30 served as the quarters for the post armorer. Building 31 is an addition, constructed in 1909. The two buildings are associated with the nineteenth and twentieth century history of Fr More
Significance: Building 207 is associated with the expansion of Frankford Arsenal, the U.S. Army's principal manufacturer of small arms ammunition, that followed the United States' entry into World War I. Surve More
Significance: Building 207 is associated with the expansion of Frankford Arsenal, the U.S. Army's principal manufacturer of small arms ammunition, that followed the United States' entry into World War I. Surve More
Significance: Building 207 is associated with the expansion of Frankford Arsenal, the U.S. Army's principal manufacturer of small arms ammunition, that followed the United States' entry into World War I. Surve More
Significance: Building 207 is associated with the expansion of Frankford Arsenal, the U.S. Army's principal manufacturer of small arms ammunition, that followed the United States' entry into World War I. Surve More
Significance: Building 207 is associated with the expansion of Frankford Arsenal, the U.S. Army's principal manufacturer of small arms ammunition, that followed the United States' entry into World War I. Surve More
Significance: Building 207 is associated with the expansion of Frankford Arsenal, the U.S. Army's principal manufacturer of small arms ammunition, that followed the United States' entry into World War I. Surve More
Significance: Building 207 is associated with the expansion of Frankford Arsenal, the U.S. Army's principal manufacturer of small arms ammunition, that followed the United States' entry into World War I. Surve More
Significance: Building 301 was constructed as the principal power plant for Frankford Arsenal, the U.S. Army's main supplier of ammunition throughout the late nineteenth and early twentieth centuries. The buil More
Significance: Building 301 was constructed as the principal power plant for Frankford Arsenal, the U.S. Army's main supplier of ammunition throughout the late nineteenth and early twentieth centuries. The buil More
Significance: Building 301 was constructed as the principal power plant for Frankford Arsenal, the U.S. Army's main supplier of ammunition throughout the late nineteenth and early twentieth centuries. The buil More
Significance: Building 301 was constructed as the principal power plant for Frankford Arsenal, the U.S. Army's main supplier of ammunition throughout the late nineteenth and early twentieth centuries. The buil More
Significance: Building 301 was constructed as the principal power plant for Frankford Arsenal, the U.S. Army's main supplier of ammunition throughout the late nineteenth and early twentieth centuries. The buil More
Significance: Building 301 was constructed as the principal power plant for Frankford Arsenal, the U.S. Army's main supplier of ammunition throughout the late nineteenth and early twentieth centuries. The buil More
Significance: Building 301 was constructed as the principal power plant for Frankford Arsenal, the U.S. Army's main supplier of ammunition throughout the late nineteenth and early twentieth centuries. The buil More
Significance: Building 301 was constructed as the principal power plant for Frankford Arsenal, the U.S. Army's main supplier of ammunition throughout the late nineteenth and early twentieth centuries. The buil More
Significance: Building 301 was constructed as the principal power plant for Frankford Arsenal, the U.S. Army's main supplier of ammunition throughout the late nineteenth and early twentieth centuries. The buil More
Significance: Building 301 was constructed as the principal power plant for Frankford Arsenal, the U.S. Army's main supplier of ammunition throughout the late nineteenth and early twentieth centuries. The buil More
Significance: Building 301 was constructed as the principal power plant for Frankford Arsenal, the U.S. Army's main supplier of ammunition throughout the late nineteenth and early twentieth centuries. The buil More
Significance: Building 301 was constructed as the principal power plant for Frankford Arsenal, the U.S. Army's main supplier of ammunition throughout the late nineteenth and early twentieth centuries. The buil More
Significance: Building 301 was constructed as the principal power plant for Frankford Arsenal, the U.S. Army's main supplier of ammunition throughout the late nineteenth and early twentieth centuries. The buil More
Significance: Building 301 was constructed as the principal power plant for Frankford Arsenal, the U.S. Army's main supplier of ammunition throughout the late nineteenth and early twentieth centuries. The buil More
Significance: Building 301 was constructed as the principal power plant for Frankford Arsenal, the U.S. Army's main supplier of ammunition throughout the late nineteenth and early twentieth centuries. The buil More
Significance: Building 301 was constructed as the principal power plant for Frankford Arsenal, the U.S. Army's main supplier of ammunition throughout the late nineteenth and early twentieth centuries. The buil More
Significance: Starting in 1816 as a storage facility, Frankford Arsenal grew into the United States' most well known ordnance manufacturers, specializing in small arms munitions. The arsenal was closed down in More
Significance: Starting in 1816 as a storage facility, Frankford Arsenal grew into the United States' most well known ordnance manufacturers, specializing in small arms munitions. The arsenal was closed down in More
Significance: Starting in 1816 as a storage facility, Frankford Arsenal grew into the United States' most well known ordnance manufacturers, specializing in small arms munitions. The arsenal was closed down in More
Significance: Starting in 1816 as a storage facility, Frankford Arsenal grew into the United States' most well known ordnance manufacturers, specializing in small arms munitions. The arsenal was closed down in More
Significance: Starting in 1816 as a storage facility, Frankford Arsenal grew into the United States' most well known ordnance manufacturers, specializing in small arms munitions. The arsenal was closed down in More
Significance: Starting in 1816 as a storage facility, Frankford Arsenal grew into the United States' most well known ordnance manufacturers, specializing in small arms munitions. The arsenal was closed down in More
Significance: These nine buildings are part of a thirteen-building complex associated with the original and most elemental purpose of Frankford Arsenal, the production and storage of powder and munitions for th More
Significance: These nine buildings are part of a thirteen-building complex associated with the original and most elemental purpose of Frankford Arsenal, the production and storage of powder and munitions for th More
Significance: These nine buildings are part of a thirteen-building complex associated with the original and most elemental purpose of Frankford Arsenal, the production and storage of powder and munitions for th More
Significance: These nine buildings are part of a thirteen-building complex associated with the original and most elemental purpose of Frankford Arsenal, the production and storage of powder and munitions for th More
Significance: These nine buildings are part of a thirteen-building complex associated with the original and most elemental purpose of Frankford Arsenal, the production and storage of powder and munitions for th More
Significance: These nine buildings are part of a thirteen-building complex associated with the original and most elemental purpose of Frankford Arsenal, the production and storage of powder and munitions for th More
Significance: These nine buildings are part of a thirteen-building complex associated with the original and most elemental purpose of Frankford Arsenal, the production and storage of powder and munitions for th More
Significance: These nine buildings are part of a thirteen-building complex associated with the original and most elemental purpose of Frankford Arsenal, the production and storage of powder and munitions for th More
Significance: These nine buildings are part of a thirteen-building complex associated with the original and most elemental purpose of Frankford Arsenal, the production and storage of powder and munitions for th More
Significance: These nine buildings are part of a thirteen-building complex associated with the original and most elemental purpose of Frankford Arsenal, the production and storage of powder and munitions for th More