America's most famous piece of self-built architecture.

Resting place of Hollywood's immortals is also site of summer film screenings.

High on a hill overlooking Los Angeles lives a world famous, high power conical Tesla Coil.

A discarded movie prop that was the original monolith for "2001: A Space Odyssey."

An overlooked marble is the only surviving in-place 18th century example of the measurement that changed how we define distance.

Now home to a drinking establishment, this building has a macabre history.

This grand memorial remembers the 20 members of the Los Angeles Times killed when the office was bombed.

This 29-ton granite ball spins around at the slightest touch thanks to a scientific phenomenon.

The final resting place of New Orleans' most famous voodoo priestess.

Legend has it that seven Anglo-Saxon kings were coronated on this stone, located in the appropriately-named town of Kingston.

During the holidays, a vintage subway train whisks New Yorkers back in time.

These steps offer a breathtaking view of one of Europe's most besieged fortresses.

These old stone ruins in the Oregon wilderness were once bathrooms and are steeped in legends of murder.

The oldest surviving presidential residence in the United States.

These wooden pipes were crucial to providing water to Medieval Edinburgh.

Hidden behind a gate in Greenwich Village is a little farmhouse that once served as the writing studio of a bestselling author.

The fanciest public restroom in New York City boasts fresh flowers, art, and a classical music soundtrack.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

The blinking light atop the iconic landmark has been sending secret messages for decades.

This otherwise ordinary close on the Royal Mile constituted the end of the world for Edinburgh’s poorest residents.

An Italian restaurant became a rock-and-roll hangout and the lair of the "Hollywood vampires."

Chelsea's soldiers were given strict orders when crossing this historic bridge.

One of the few remaining examples of 19th-century London’s attempt to clean up its reputation.

Nearly four centuries after its founding, remnants of one of the oldest planned communities in North America are still visible in southern Brooklyn.