The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

Mysterious meeting place for UFO hunters near Area 51.

The arch that celebrated the completion of the Lincoln and Victory highways.

Bill Murray bowled three straight strikes here at Reno's "Taj Mahal of Tenpins."

This vintage animatronics show is the Vegas version of a walk through the woods.

Eastern zen meets Western grit in these four little trees growing out of a rock on Lake Tahoe’s Nevada shore.

This Nevada lake holds its titular natural pyramid and, if the legends are true, a number of dangerous spirits.

An eatery for UFO seekers on the Extraterrestrial Highway.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

The world's smallest park was dedicated in 1948 as the only colony for leprechauns west of Ireland.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

On the Oregon coast there is a natural hole that seems to be draining the sea.

In the middle of an extremely unforgiving and desolate high desert is the most secret military facility in the world.

This symbolic piece of New Orleans architecture is also home to a few ghastly stories.

The world's only international cryptozoology museum is host to an unrivaled collection of mysterious objects.

The Beaux-Arts aquarium boasts a vast collection of saltwater and freshwater fish on an island in the Detroit River.

The largest whale museum in Europe allows visitors to walk among life-size giants.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

An encyclopedic collection of mammal penises.

This expansive bridge in the Canadian wilderness was originally just built for friends.

Paris' fabled purveyor of exotic taxidermy and natural history curios.

The only rotating bar in New Orleans has been slowly spinning since 1949.

This bar named after the world's first mixed cocktail was home to one of New Orleans' most notorious politicians.

A collection of oddities including Dr. Kevorkian's suicide device, the Thanatron.