Public domain vintage photo from New Zealand archive, 19th century, free to use, no copyright restrictions image - Picryl description.
Opportunity View After Long Drive on Sol 1770 NASA/JPL-Caltech
Opportunity View After Long Drive on Sol 1770 Vertical NASA/JPL-Caltech
Opportunity View After Long Drive on Sol 1770 Polar NASA/JPL-Caltech
A painting of a tunnel / A picture of a road with a tunnel in the background / Public domain art photo.
Public domain image of personnel, army, group of people in uniform, parade, historic place, military activity, free to use, no copyright restrictions - Picryl description
Public domain reproduction of illuminated book page, free to use, no copyright restrictions image - Picryl description