The world's largest dead polar bear, immortalized by taxidermy and Hunter S. Thompson.

These falls, sometimes called the "Niagara of the West," still put on a good show at the right time of year.

Just a man taking his prehistoric pet for a stroll.

A six-ton, 12-foot-tall concrete prairie dog is touted as the largest in the world.

This Wyoming town is fascinated by a particular mythical creature.

Devilish landscape, once cinema home to giant alien bugs, now derelict roadside attraction.

A small town built on an abandoned airfield has former runways as streets and a bar and grill in an old airplane hangar.

A devilishly named gorge that was a sign of salvation for many pioneers.

Step into the cool deep past and unknown future of who begat who.

An attractive alpine lake at 8,400 feet that is accessible via a paved road.

Drive up a paved road into "Nevada's Yosemite" for exquisite views and mountain hiking in an alpine setting.

Eons ago, a rushing lava river formed this pristine passage through solid rock.

This cave was hidden for thousands of years, storing the worldly goods of ancient Native Americans.

This geothermal hot spring hides beneath a slowly growing mineral dome.

Largest collection of mounted dinosaur specimens in the world.

This large, castle-like structure is hidden amid the mountains on the grounds of the Utah State Hospital.

A music-filled, booze-soaked oasis in the desert.

Instead of faces, these sculptures have barcodes—statements on societal dehumanization.

Hundreds of glow-in-the-dark objects light up a museum in a historic zinc mine.

This former Masonic hall has been turned into an art project that uses even more metaphysical iconography.

At the supposed instruction of Ben Franklin and Socrates, a Spiritualist believer intended to birth a mechanical messiah here.

Palatial mansion estate used in films including "Flowers in the Attic" and "The Witches of Eastwick."

The 92-foot-tall structure is based on the aircraft that carried the first Americans into space.

Once the future of underwater combat, this old sub is now open for visitors to muck around in.