Earth was not always the blue-green world we know today: early Earth's oxygen levels were about a million times lower than we ...

Japanese hot springs—better known as onsens—are prized for their zen experience, with travelers coming from around the world to lounge in natural pools and bliss out. The country is home to 27,000 ...

WHITE STEAM rises from the waters of Okuhida Onsengo in snowy northern Japan. Each year thousands of bathers from across the country travel to soak in these hot springs. Down the road, meanwhile, the ...

Soak in the three-Michelin-starred baths of Hyotan Onsen. Learn more about the craft of traditional bamboo weaving by taking a class at the Bamboo Cultural Center. Take a thermal sand bath while ...