This titanic oil company sign is a reminder of the Americana boom of the 1970s and also its commoditization.

Giant granite rocks standing end-to-end like a train of circus elephants.

Erosion and time have created a naturally-formed water park.

This Memphis recording studio launched the careers of Jerry Lee Lewis, Johnny Cash, and Elvis Presley.

An incarceration museum on the spot of possibly the oldest prison in England.

The remains of Crystal Palace Great Exhibition of 1851.

Wedged between two buildings at the Great Ormond Street Hospital is this secret music installation.

The ruins on a deserted tropical island in the Philippines bear the scars of WWII.

This life-size bronze statue remembers the tallest recorded human in his Illinois hometown.

A mythical bird etched into the face of a rock doubles as the mascot for a nearby school.

Quirky water tower advertises the long-gone Brooks Tomato Products Co.

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.