Geology

Nature has shaped this drainage tunnel into the digestive tract of a mighty beast.

This unique landscape is the only place in the world to dig for hourglass-selenite crystals.

One of the best places to dig—some say on the planet—for six different types of chalcedony.

Multiple waterfalls and several historic CCC buildings anchor this state park in Oregon's Willamette Valley.

A map made up of 32 different materials, representing Ireland's 32 counties.

This cave at the base of an unusually shaped cliff is said to be inhabited by a mythical forest enchantres from Scandinavian folklore.

The second largest monolith in the world was once betrayed by its lover, Ben Aicha.

You can dig up your own crystals in the quartz capital of the world.

Construction uncovered this trove of fossils, which visitors are welcome to add to their own collections.

A life-sized recreation of the megafauna that once roamed this region is a feature at the birthplace of American paleontology.

A boulder so big and tough, they had to turn it into a landmark.

A Native American petroglyph, the site of an emigrants' waystation, and the ruins of an early 20th-century sheep camp are all found at this crossroads.

A volcanic crater that visitors can look inside.