Brass bricks outline the locations of Edinburgh's lost, lively market stalls.

A quartet of brightly colored mythical beasts stand sentry at this gateway.

A sweet symbol marks the place where torturous executions were once carried out.

The 20th-century chapel’s intricate woodwork includes amazing details, most notably angels playing bagpipes.

Touching this 18th-century Scottish philosopher’s toe allegedly conjures good fortune.

Romance fans worldwide make the pilgrimage to this group of historic covered bridges in rural Iowa.

First founded in 1472, this is the oldest bank in the world. Its history may explain why we call financial institutions "banks."

This fortress dates back to the 6th century and is also the site of a controversial abandoned restoration project.

The ceiling of this cavern is dripping with multicolored marble stalactites.

The Ayo Rock Formations stand out on the island of Aruba as a unique arrangement of giant boulders with interesting crawl spaces to explore.

Aruba’s first chapel.

The remnants of an abandoned, 19th-century gold mill along Aruba's rugged northeastern coast.

This staircase in a lush tropical grotto was built by enslaved laborers and renamed to honor Queen Victoria's role in ending slavery in the British Empire.

Once a slice of Cold War-era military history, this museum is finding its future in the stars.

Thousands of objects from a steamboat wreck reveal an extraordinary snapshot of American frontier life in 1865.

The last location where Buddy Holly, Ritchie Valens, and J. P. "The Big Bopper" Richardson played before their tragic deaths.

The iconic Manhattan corner that was once the site of the Beastie Boys' fake clothing store.

A clock set into the concrete outside a Manhattan jeweler has been telling time underfoot for over a century.

This monument to a veteran of the Mexican-American War is one of only two in Manhattan that serve as an actual mausoleum.

A dark patch of the ceiling at Grand Central Terminal which was not restored is still stained brown by tobacco.

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

Rummage through this sunken ship, but leave your scuba gear at home.

This historic building housed the surviving crew members of the Titanic, who were left destitute after the wreck.