710 Items Tagged

Geological Oddities

Boonsboro, Maryland

Crystal Grottoes Caverns

Bizarre Cavern.

Bloomington, Indiana

The Garret

Ornate limestone building now filled with geologic specimens, and more.

Grand Saline, Texas

The Salt Palace

A small "palace" and museum made of, and devoted entirely, to salt.

Garni Gorge

A geological oddity topped with a 2,000-year-old pagan temple.

The river Rubicon flowing through the cave

Remouchamps, Belgium

Caves of Remouchamps

Hiding the longest subterranean river known in the world.

Sami

A spectacular cave and a beguiling lake.

Richat Structure

A geological bull's-eye visible from outer space.

Mir mine.

Mir Diamond Mine

The world's second-largest excavated hole.