A waterfall 600 ft. inside a mountain, once the bane of gold miners, is now a spectacle of nature.

South Dakota's oldest operating brewery is housed inside a historic firehouse.

An entire city block built completely out of petrified wood.

The highest point in South Dakota contains the ashes of Valentine McGillycuudy, the "Holy White Man."

A cemetery housing wild west legends in South Dakota.

The ravine where Jesse James supposedly performed an impossible jump to evade capture.

This prehistoric sinkhole lured exclusively male mammoths to their death, much to the delight of science.

Thanks to a loophole in property ownership, this alleyway has become a cacophonous street gallery.

Hidden behind Lincoln's head is a 70-foot-long chamber containing enamel plates documenting American history, sealed in a teakwood box in a titanium vault.

This replica stave church looks like a piece of Norway was simply plopped down in South Dakota.

Just a man taking his prehistoric pet for a stroll.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

Nestled in Coachella Valley, this museum transports guests from the Mesozoic Era, to the land of Egyptian kings.

Where decommissioned airplanes and helicopters go to become part of Hollywood.

The stone walls of a home built to withstand a California wildfire still stand after more than a century.

These unusual houses look like giant boats that washed ashore on a residential street.

Once the fastest ship from San Francisco to Tahiti, the Galilee now lays in pieces in three different cities.

The final resting place of the most famous sharpshooter.

This concrete ship has had four careers - World War I tanker, floating amusement park, fishing pier, and artificial reef.

Chewing gum tycoon's memorial lies perched over wife's botanical gardens on Santa Catalina Island.

Spend a day hanging out with domesticated Russian foxes.

This restaurant offers the original California cuisine.

The decor of this Hollywood movie palace just barely predated the opening of King Tut's tomb.