Jim and Grace Cramond own the historic Jordan Caves. “Every which way you turn, you find a new gem with this place,” Grace ...

Deep in Central Oregon lies a short yet unnervingly narrow lava‑tube hike full of basalt corridors and tight passages where ...

Learn key facts about Dames Cave Trail in Withlacoochee State Forest from hidden sinkholes to forest scenery so you can hike ...

Scientists may finally be closing in on the origins of two colossal, mysterious structures buried nearly 1,800 miles inside ...

Inca sites, lies a granite cave carved with astonishing precision — walls smoothed, angles exact, and surfaces cut as if by machinery. Archaeologists still debate how such work was achieved without ...

Deep inside a sealed 40-mile cave system, the team films everything — from blinding white crystal ceilings to ancient jaguar ...

Explorers in southern Spain have linked two deep caves into one “supercave system” about 16.4 miles long. The connection sits ...

Climate history recorded in a calcite deposit in a southern Nevada cave indicates that the hot, arid southwestern United ...

Had one hoped to leave a time capsule for today’s Bostonians in the Permian period 250 million years ago, much less the Pliocene epoch four million years ago , they would have been completely, utterly ...

A ridiculous but instructive thought experiment involving deep time, plate tectonics, erosion and the slow death of the sun ...

When Tom Sawyer Island closes at the Magic Kingdom this weekend, Disney World's going to lose most of its cool fake caves.

Bowling Green hides Kentucky’s only underground boat ride, a serene glide along a subterranean river that flows through cathedral-like chambers. Lost River Cave blends easy access with genuine ...