Through the arches of the Great Wall, Huairou / China (by Andrey Sulitskiy).

Ancient garden, Machu Picchu / Peru (by flower_bee).

The famous Taj Mahal in Agra, India (by franchab).

Clearing Storm over Machu Picchu, Peru (by AndersonImages).

Admiring the wonder, Machu Picchu, Peru (by jpwchi).

The Great Wall at Badaling, north of Beijing, China (by betta design).

Lake Hillier, the pink lake in Recherche Archipelago, Western Australia (via imgur).

The Smoke that Thunders, Victoria Falls, Zambia (by bfryxell).

La Piedra de Guatapé, Antioquia, Colombia (by mamonto_70).

The Lost City by Michael Anderson on Flickr.

Machu Picchu, Peru.

The Lost City of the Incas, Machu Picchu, Peru (by Marc Shandro).

The Terracotta Army, discovered in 1974 by some local villagers in Xi'an, China (by LeelooDallas).

Morning mist at Machu Picchu, Peru (by Sidabossa).

The last road leading from the sungate to Machu Picchu, Peru (by MaulPhotography).

Entrance to the Treasury (Al Khazneh), a stunning piece of Nabataean architecture in Petra, Jordan (by IANLAYZELLUK).

The smoke that thunders, Victoria Falls, Zambia/Zimbabwe (by Dominique Schreckling).

Finalist in the New 7 Wonders of Nature competition, Jeita Grotto, Lebanon (by ZappaPhotos).