Feb. 18.--The discovery of a large cave by two young men while engaged in preparing a piece of new land for a crop is the latest excitement here. View Full Article in Timesmachine » Advertisement ...

Lovers of all things geology will appreciate these strange and beautiful cannonball concretions; a North Dakota classic that'll leave you scratching your head.

This cave on a hillside near Tarbox Pond may have been a winter shelter for the Narragansetts. Find out why it's also known as "Witch's Cave." ...

From strange caves to spectacular rock structures, the unexplored caves and the geological marvels around Bengaluru tell a fascinating story about the Earth's history. Here's a journey through ...