Source: Wikipedia
The Naica mine in the Mexican state of Chihuahua has been producing lead, zinc, and silver for well over a century. It is a working industrial site, and the…
There is nothing quite like looking into a crater and understanding, in a physical way, that the ground you live on is a thin crust over something enormous. These fourteen…
Source: Wikipedia
Look at a map of the Mediterranean Sea today, and you see a vast, deep body of water, ringed by the coastlines of Europe, Africa, and the Middle East,…
Source: Wikipedia
Seen from high above, in photographs taken by satellites and by astronauts aboard the International Space Station, it looks almost too perfect to be natural: a vast, circular pattern…
Source: Wikipedia
Lake Nyos sits in a volcanic crater in the highlands of northwestern Cameroon, a deep, still body of water that, for generations, the local people knew simply as a…
Source: Wikipedia
Deep in one of the emptiest deserts on Earth, a giant hole in the ground has been on fire for over fifty years. The Darvaza gas crater, in the…