Geological Oddities

A series of magical limestone formations along the coastline of the country island of Antigua.

A former travertine mine traces the geological history of this unique desert filled with crystalline blue pools.

Colorado's only active volcano last erupted around 4,000 years ago.

These modest Midwestern formations are kin to Niagara Falls' impressive cliffs, more than 600 miles away.

Legends hold that these unusual rock formations were once a bridal party, or perhaps a group of hunters.

This large stone off the coast of Martinique had a brief career in the Royal Navy.

These craggy limestone outcrops offer a glimpse at a unique piece of Florida geology.

A 40-foot waterfall flows into this unique natural swimming hole.

The damming of the Colorado River buried an iconic geologic formation before record-breaking drought brought it back.

Leonardo da Vinci was one of many to find inspiration in this unique, rocky landscape in Tuscany.

Named for its similarity to the tip of a violin's bow, this striking formation was created by millions of years of erosion.

This large chunk of dark rock is a relic from an ancient volcanic eruption.