Geology

This mesmerizing and surreal landscape features intricate patterns of white and red sandstone.

This hidden gem in Arizona is truly worth the rugged journey.

The only United States mine for magnesium carbonate has been operating continuously since the 1930s.

A wonderland of caves in eastern Iowa.

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

A large, remote national monument highlights the typical geologic structure seen in Nevada.

In the heart of Luxembourg's "little Switzerland" weaves a breathtaking natural sandstone canyon with a mythological past.

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

Along the Outback Scenic Byway, adjacent to hot springs, this human-made geothermal feature takes unexplained breaks.

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.

This ancient limestone cave system contains many impressive geological features.