Local legends say that a giant who tried to destroy a nearby church lived in this rock cave.

At the most northwestern point of the contiguous United States lies a trail leading through an ancient forest to stunning cliff-side vistas and massive oceanside caves.

This restaurant serves wood-fired fare served in a natural cave with a live spring.

The largest riverfront opening cave in the Ozarks.

South of Bologna, a limestone grotto with a protruding waterfall and a floor full of cave pearls.

Packed with geological formations, an ancient river, and taxidermied seals, this overlooked coastal cave system is worth a spelunk.

William Buckley escaped from prison and is said to have spent years hiding in this seaside cave.

An average of 33 million gallons of water pour out of the collapsed cave at the heart of this spherical spring.

The ceiling of this cavern is dripping with multicolored marble stalactites.

Every half hour, the flow of this unusual spring cycles between a rush of water and barely a trickle.

Generations of rockhounds got their start at this beloved, historic mine.