Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

Mussolini gave Cincinnati a bronze statue of Romulus and Remus suckling at a wolf's teats.

An art deco ice cream shop covered in vintage train station tiles.

An abandoned relic of the city's failed experiment with below ground transit.

Where beautiful signs live on forever.

The bears may be gone, but their old cages can still be found.

The site of one of the strangest disasters in history—a wave of deadly molasses traveling at 35 mph.

This was once the home of Gahan's Saloon, Denver's most storied speakeasy.

A virtually untouched "home on the hill" for the flora and fauna of Rhode Island.

Last residence of H.P. Lovecraft featured in his story "The Haunter of the Dark."

A 19th century library favored by Edgar Allan Poe and H.P. Lovecraft, known by locals as "the Ath."

A piece of John the Baptist in the American heartland.

Two hundred tons of pioneer artifacts were painstakingly recovered from a shipwreck at the bottom of the Missouri River.

An artsy hidden staircase leads to breathtaking views of San Francisco.

Spanning an elevation of 160 feet and containing 388 steps, this is Seattle's longest staircase.

A wall of chewing gum moonlights as collective art.

A museum dedicated to the history and exploration of both popular music and science fiction.

This eclectic collection documents the wild legacies of "America's Wickedest Street."

A research lab and hands-on museum where visitors can experiment with retro technology.

The oldest operating cemetery in Denver is the eternal home of some of the Centennial State's most famous residents.

One of the greatest heroes of the Titanic tragedy came from humble beginnings to this beautiful home.

An impressive collection of over 50,000 minerals including moon rock from the Apollo 17 mission.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

A "Titanic" superfan changed his name to Jack and set up this strange shrine to the blockbuster, complete with Korean food and Tarot readings.