Grand Prismatic Spring

The Grand Prismatic Spring in Yellowstone National Park is the largest hot spring in the United States, and the third largest in the worl...

Pamukkale, Turkey

Pamukkale, meaning "cotton castle" in Turkish, is a natural site in Denizli Province in southwestern Turkey. The city contains ...

The Wave, Arizona

The Wave is a sandstone rock formation located in the United States of America near the Arizona-Utah border, on the slopes of the Coyote ...