This incredible collection of vintage pinball machines can be played at 25 cents a pop.

Brightly colored 30-foot-tall totems light up the desert sky just outside Las Vegas.

The first permanent memorial to a unique secret weapon of World War II.

A geological mystery on Camelback Mountain.

A wild west cemetery in Tombstone, Arizona, provides a window into the Old West.

Stairs often replace streets on the steep slopes of this old mining town.

This quirky hot springs town known to locals as "T or C" was named after a radio show.

Legends surround this jagged rock formation in the New Mexico desert.

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

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

These massive mitts are made of 30 tons of devotional bronze.

An acoustic anomaly with a mysterious cause sits in the heart of Tulsa.

A 19th-century Gothic, castle-like statehouse by the Mississippi River.

By day this New Orleans square is for pedestrians, but by night it is a kingdom of kittens.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

Open day and night, a church with three pews and Bibles.

A trading post in the North Pole where children send letters.

The king of U.S. high points towers over every other peak on the continent.

An extraordinary final resting place full of oversized art, amazing statues, and dead celebrities.

A sculpture made of 10 Cadillacs as a monument to the “Golden Age” of the American automobile.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

Big gun installations, built over a massive cemetery, now abandoned & hidden in trees.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

An old saloon in the West filled with history, and according to some, a few dozen ghosts.