Take a dip in the world's largest mineral hot springs pool.

There are eight natural springs around town, each with a slightly different taste.

This enigmatic building features numerous architectural styles.

This super steep hike ascends 2,000 feet in less than a mile.

Hidden beneath a bridge, this waterfall is known for the large amounts of graffiti painted on its base.

These faux-cliff dwellings allow visitors to climb around on a replica archaeological site.

Small teepee-like houses built for TB patients have become sheds, studios, and bus stops around Colorado Springs.

Air Force Academy Chapel made of 100 identical tetrahedrons works to inspire those of all religions.

A cemetery full of touching tombstones from a community of railroad workers, uranium miners, and Cold War missile launchers.

More than a century old, this trading post resides in the Navajo Nation.

A mysterious spirit totem at the edge of Navajo lands.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

A French chateau, failed utopian community, odd museum, and Stonehenge replica in rural Washington State.

Perhaps the world's only gas station inspired by a political scandal.

This dilapidated ship carcass covered in trees is a striking sight.

This old selenite mine is dotted with tiny crystals that make it shimmer like it's covered in glitter.

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

One of the world's oldest and most massive living organisms is a grove of quaking aspens.

Dig for your own trilobites in this goldmine of invertebrates.

A tunnel with windows, so you don't miss out on the impressive views.

A stoic rock cairn is all that remains to remember one of the more brutal instances of frontier treachery in American history.

These headstones and a few stone foundations are all that remain of a once-booming mining town.

This quiet park's strange sedimentary spires were named after Kodak's color film.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."