Check out 24 of the world’s must unusual landscapes — from the hellish Darvaza Gas Crater in Turkmenistan to the “snow ...

Martian corn grown with wastewater-digesting ... would look after such a transformation — it could lose its iconic blue sunsets, for example. In 1971, astronomer Carl Sagan suggested melting ...

At 300 meters wide (984 feet) and around 125 meters deep (410 feet), the Great Blue Hole is the biggest ... amphitheaters that look spectacular at sunset. The lowest point on Earth, the Dead ...