World
Travel and landmarks
Famous landmarks and natural wonders around the world: how big they are, how old they are, and what visitors find there.
Fact files
All topics ›The Great Wall of China
21,196 km
Total length in China's 2012 survey
Stonehenge
3000 BCE
Earliest date for the start of construction
Salar de Uyuni
10,000+ km²
Area of the world's largest salt pan
Angkor Wat
162.6 hectares
Size of the Angkor Wat site
The Grand Canyon
447 km
Length of the canyon along the river
Death Valley
134 °F
Highest air temperature on record, Furnace Creek, 10 July 1913