Step off the desert trail and into Arizona’s longest cave, where crystal formations and subterranean wonders await.

Explore the world's longest known cave system and see colorful, subterranean light displays in these incredible caves that ...

Jewel Cave, located 13 miles west of Custer, has more than 208 miles of “mapped and surveyed passage ways,” with hundreds of suspected passages yet to be explored, according to the National Park ...

Most people come to Pictured Rocks National Lakeshore in Michigan’s Upper Peninsula for its namesake — the colorful, mineral-stained sandstone cliffs that line mighty Lake Superior. Those cliffs are ...

BAYFIELD, Wis. >> Walking atop a frozen stretch of Lake Superior’s south shore, Jon Michels paused to look at a 30-foot-tall rippled ice wall cascading over a sandstone cliff cave. Then he noted ...

Vandals have damaged Fitton Cave in Newton County. They removed several cave formations, including stalagmites and draperies, said Cassie Branstetter, a spokeswoman for the Buffalo National River. It ...

SPRINGFIELD, Mo. (KY3) - It’s a unique job that includes several duties. Part doctor. Part engineer. And part Michelangelo. Jonathan Beard goes around painting, planning, and giving new life to cave ...

BAYFIELD, WIS. – Walking atop a frozen stretch of Lake Superior's south shore, Jon Michels paused to look at a 30-foot-tall rippled ice wall cascading over a sandstone cliff cave. Then he noted ...

The cave of Diros on the Peloponnese peninsula is a wonder of nature where an artistic miracle has been sculpted in the ...