Archaeological excavation of a Neolithic settlement, Glamilders, Åland Islands, circa 1906.
Erechtheum, Porch of Caryatids, Greece, circa 1869.
Parthenon from the Northwest, Athens, Greece, circa 1860.
The Nunnery, Chichén Itzá, Mexico, circa 1895.
Nebatean ruins of Mada’in Saleh, Saudi Arabia, circa 1960.
Megaliths of Britain, date unknown.
The Chullpa of Sillustani, Peru, date unknown.
Roman aqueduct, circa 1956.
Archaeologists at Mt. Tlaloc, Mexico, circa 1969.
Teotihuacan, Moon Pyramid, Mexico, circa 1972.