The world's most impressive geological features
Khara Salt Lake, Iran Just over 100km from Esfahan, Varzaneh is possibly the only place where on approach you can see three natural phenomena together – sand dunes, shimmering in the sun, on the white surface of the salt lake, the wetlands and a volcanic mountain rising in the middle. © Maria Oleynik Danakil Depression, Ethiopia Officially the hottest place in the world, and the lowest point on the African continent, the Danakil Depression, a volcanically hyperactive stretch of the northern Rift Valley, doesn’t conform to conventional notions of chocolate-box prettiness. © Radek Bor...