Ceremonial Plaza and the unique elliptical structure of the Temple of the Sun, which exhibits classic Inca mortar-less stonework, at Ecuador's most important Inca site, Ingapirca, Canar Province, Southern Highlands, Ecuador, South America

Ceremonial Plaza and the unique elliptical structure of the Temple of the Sun, which exhibits classic Inca mortar-less stonework, at Ecuador's most important Inca site, Ingapirca, Canar Province, Southern Highlands, Ecuador, South America

Heads carved into rocks at Enchanted Castle, Sciacca, Agrigento district, Sicily, Italy, Mediterranean, Europe

Las Dalias Hippy Market, Sant Carles de Peralta, Ibiza, Balearic Islands, Spain, Mediterranean, Europe

Egyptian Museum, Cairo, Egypt, North Africa, Africa

Puppy works by Jeff Koons, Guggenheim Museum, Bilbao, province of Biscay, Basque Country, Spain, Europe

Skull of an adult female leopard seal (Hydrurga leptonyx), on display at the Natural History Museum in Stanley, Falkland Islands, South America

Overlook over Ilulissat, Western Greenland, Denmark, Polar Regions

Spider bronze sculpture 'Maman' by Louise Bourgeois and tourists at Guggenheim Museum in Bilbao, Basque country, Spain