Cuzco, City of the Sun, Peru, c 1843-1847.

PERU - JULY 16: Lithograph by Champin of the ancient capital of the Inca empire, seen from Quiscapampa, with the Andes in the distance. From �Expedition dans les parties centrales de l'Amerique du Sud� (�Expedition in the central parts of South America�), by Francis de Castelnau (1812-1880), published in Paris in 1852. This is an account of the French government�s scientific expedition led by Castelnau in the years 1843-1847. The party travelled across South America to La Paz in Bolivia, making meteorological, botanical and zoological observations. (Photo by SSPL/Getty Images)