Japan’s famed hot springs, or onsen, are full of invisible tripwires, from nudity to tattoos. A certified onsen sommelier ...

The bison died in the boiling waters of the Grand Prismatic Spring. This happens from time to time, but usually not in front of a crowd.

It was a cold February day in northern Japan, snow piled high outside the onsen locker room windows as I slipped out of my clothes. Nervously, I stepped into the plumes of steam wafting from the next ...

This video shows a series of terraced hot spring pools built into a steep mountainside in Tolantongo, Hidalgo, Mexico. The light-colored mineral pools stretch across the rocky slope, connected by ...