South Carolina's last remaining slavery auction house is now a museum devoted to its own tragic history.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

Construction of Barcelona’s iconic (but controversial) church was finally completed in 2026—a century after the death of its architect.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

The bridge that cost Germany a World Heritage Site.

When the rain falls, this drain system turns into a musical instrument.

One of Catholicism's four major basilicas has a series of papal portraits that are said to predict the end of the world.

The secluded beach getaway from Wes Anderson's dreamy summer romance.

The ruins of an open-air theater built on this Georgia island in the 1970s.

What was once supposed to be the symbol of a shining Afghan future is now a bombed-out ruin.

This strange bovine gargoyle is said to have been put in as a passive aggressive form of revenge.

The purported world's shortest international bridge connects a homeowner in Canada to his backyard in New York.

The oldest bar in Missouri is hidden within a limestone brewery cellar more than 50 feet underground.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

The first blast furnace in the United States that used coal and coke fuel instead of charcoal to make pig iron.

One English town's celebratory landmark spurred more trouble than anticipated.

This is the oldest Roman-made bridge in the city still existing in its original state.

A piece of the Ludendorff Bridge, also known as Remagan Bridge, calls this military base home.

The last bastion of Roman presence north of the Alps looms over a German town.

The building features one of the last remaining free-floating spiral grand staircases in the U.S.

Three and a half miles of cliffs, rocky beaches, Gilded Age mansions and 40 Steps to nowhere in particular.

This Rhode Island mansion was a stand-in for the exteriors of Collinwood in the original "Dark Shadows" series.