caves

A period of abrupt climate change 12,000 years ago occurred rapidly in northern latitudes but much more gradually in equatorial regions, report researchers.

Since 2004, researchers have been studying the Frasassi cave system, an actively developing limestone cave system located 1,500 feet underground in central Italy.

Slovakia is a tiny country in the center of Europe, its top tourist attractions include the Tatra mountains, caves and medieval castles.

The Yungang Grottoes are ancient Chinese Buddhist temple grottoes near the city of Datong in the province of Shanxi.

Located near the village of Shiyan Beicun in Zhejiang province, China, lies the Longyou caves - an extensive, magnificent and rare ancient underground world considered in China as ‘the ninth wonder of the ancient world.’