Lake Shasta is at 106% capacity for the third consecutive year due to abundant rainfall. Local businesses, including Lake ...

Listed for $1.75 million in Shelbyville, Tennessee, is the most unusual, and cool, bunker you might ever see — mainly because it comes with some pretty vast additions, like an entire cave system.

Far beneath the Arizona desert sits a hotel room like no other. The Cavern Suite is part of a vast underground network 220 ...

Boyden Cavern in Kings Canyon National Park offers visitors a glimpse into a glittering underworld, thanks to preservation ...

Carlsbad Caverns National Park in New Mexico is home to one of the most impressive cave systems in the world. Below you ...

The seven-level cave system in Bellevue features unique rock formations and an underground river, discovered in 1872 when a dog fell into a sinkhole.

Travelers look beyond the usual summer spots that are cooler than the beach, with underground attractions and cavern escapes ...

For centuries, humans have lived underground. Today, that ancient practice is under dire threat—even as cave life makes more ...

FROM A WINDY SILENCE, the distant calls of night creatures drew nearer; as we climbed into the mist and clouds, they emerged, ...

Fallout 76 is set in the year 2102, and the TV show is set in 2296, 194 years apart. That's a long time, way too long for ...

Turns out there are snowmelt-fed underground streams that flow through the cave and drain into the Kaweah River system, ...

Is Arizona's most beautiful place an iconic red rock butte, a blue-green waterfall or an otherworldly cave formation? Vote in our stunning views poll.