On June 14, 1914, three men climbed Lassen Peak to see why a seemingly dormant volcano had started rumbling 16 days before. Now, peering into a newborn crater, they felt the ground tremble.

At Mesa Verde, Spanish for "green table," multistoried dwellings fill the cliff-rock alcoves that rise 2,000 feet above Montezuma Valley. Remarkably preserved, the cliff dwellings cluster in ...

A sun-swept corner of the Painted Desert draws more than 600,000 visitors each year. While most come to see one of the world's largest concentrations of brilliantly colored petrified wood, many ...

One of the world’s oldest national parks, Mount Rainier became part of the federal system in 1899, shortly after its last eruption. Park status was the culmination of a long campaign by John ...

Under a swath of Kentucky hills and hollows is a limestone labyrinth that became the heartland of a national park. The surface of Mammoth Cave National Park encompasses about 80 square miles.

Fifty years since reunification, the fall of Saigon is a distant memory and microbreweries, cool cafes and Michelin-lauded ...

Scientists reveal new details about the 5.3-million-year-old flood, which triggered earthquakes, generated tropical-storm ...

From a sleek breathing necklace to therapeutic dough, these 12 ingenious tools are great additions to any traveler’s kit.

These 1,000-pound creatures travel in large herds and can smell water miles away. Now, the race is on to stop them from ...

Although horses may be the stars of the Kentucky Derby, hats take center stage at the 151-year old horse race in the American ...

Thailand’s capital city is a sensory overload, but between the tuk-tuk-packed streets and steamy markets there’s a serene, ...

Cosmologist Katie Mack breaks down what the latest findings about dark energy mean for our universe’s future. Either way, it ...