Chinese astronauts, known as taikonauts, were sent into a large limestone cave system in a remote area of China.

1 of 4 — Cave Point Country Park at Door County in Wisconsin 3 of 4 — The Visitor Center at Cave of the Mounds. Blue Mounds, WI, United States, May 4, 2023. Cave of the Mounds, a natural limestone ...

Slovenia is home to some of the most amazing limestone caves in the world, which are a treat for nature lovers and adventure ...

Missouri is freckled with geologic features like caves and sinkholes. This is because the bedrock — composed of soluble rock like limestone and dolomite — is conducive to karst formation. Missouri has ...

While exploring a massive limestone mine, we stumbled upon something totally unexpected – a natural cave system hidden within the man-made tunnels. In this video, we follow the path from rough-cut ...

While Arizona is famous for its stunning landscapes and dramatic rock formations, some of the best things to see here are underground. Arizona has numerous famous caves — some readily open to the ...

Arkansas will soon name its stunning limestone cavern complex as a state park, which features glowing formations, underground ...

Wisconsin’s geological diversity offers unique adventures, one notable being kayaking through the fascinating cave systems along its waterways. As you navigate the waters of Lake Michigan or Lake ...

Local cavers detail the beauty of caves and what fuels their passion to keep exploring. The Central Indiana Grotto is a group of cavers who meet monthly in Indianapolis. Each year they host an event ...

An Indonesian cave painting that depicts a prehistoric hunting scene could be the world's oldest figurative artwork dating back nearly 44,000 years, a discovery that points to an advanced artistic ...

Leah PelletierLocal Journalism Initiative ReporterRocky Mountain Outlook CROWSNEST PASS — Deep underground, with only the yellow hue of a headlamp illuminating the murky walls of the Yorkshire Pot ...