Idaho’s largest, deepest limestone cave is known for its quirky rock formations and bat population.

This underground cave located in the most barren reaches of Idaho is filled with ice year-round.

A towering tribute to decisiveness stands on the spot where Brigham Young and his followers decided that this must be the place.

The remains of this early 20th century refinery loom on a mountainside like a graffiti-covered fortress.

The largest island on the great salt lake is home to curious creatures and strange stories.

Largest collection of mounted dinosaur specimens in the world.