Grand Prismatic Spring—Wyoming, USA
Located in Yellowstone National Park, the Grand Prismatic Spring is the third-largest hot spring in the world. Its mesmerizing colors of orange, yellow, green, and blue are only one of its crowd-drawing attributes. Its maximum depth is 121 feet and its diameter is an impressive 370 feet. The spring’s average temperature is 160 degrees Fahrenheit.
Pamukkale, which is Turkish for “Cotton Castle,” is Turkey’s most visited tourist attraction. And after seeing these incredible hot springs, we understand why. The springs almost appear to be “hanging” onto the side of a cliff, creating a remarkable natural phenomenon. Pamukkale is also rich in history—it’s located beneath the site of the very well-preserved ancient Greek-Roman city of Hierapolis. Who wouldn’t want to bathe and walk where the Romans once did?