Once one of the world's great cities, Cahokia was a place of religious worship, trade and mass human sacrifice before being mysteriously abandoned.

Fresh wooden posts have been added to ancient holes to recreate a primitive henge clock.

A 19th-century shrine covered with prosthetic body parts as votive offerings.

A 200-year-old bar in the historic French Quarter refuses to give up its place in history, nor its role in securing ours.

The city of Rockford, Illinois is symbolically protected by a quartet of fittingly stony sentinels.

The world's longest known cave system.

A geological mystery on Camelback Mountain.

The abandoned site of the Beatles spiritual awakening and subsequent revolt.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

The quaint little store that is said to have inspired a famous Dickens novel was only given its name after the book was released.

The palatial McDonald's that inspired Wesley Willis.

This urban drawbridge gained eternal pop culture fame when the Blues Brothers jumped it while it was raised.

This tiny historic jail along Route 66 is the perfect fit for exactly one criminal and their partner-in-crime.

The mysterious white squirrels of this Illinois city are treated like sacred cows.

One of the most powerful computers in the world can be visited by anyone who wants to experience more computing than they can handle.

The oldest experimental corn field in America is still creating better ways to grow crops.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

Catacombs turned marketplace.

A museum wholly devoted to juvenescence.

When you visit his grave, be sure to rub the Great Emancipator's nose for good luck.

A hillbilly theme park that proved so unpopular the land wouldn't even sell on eBay after it closed.

The "lovely red Vega" of the legendary record-settling pilot.

A cemetery housing wild west legends in South Dakota.