The bell that once tolled atop a lost Edinburgh gate now hangs for all to see.

A verdant 17th-century-style garden hidden along Edinburgh’s Royal Mile.

A series of three shiny letters mark the boundary of an old refuge for those being pursued by debt collectors.

The Scottish Reformation leader's grave was paved over and is now a parking lot.

The 16th-century church has the only stained glass windows that survived the Scottish Reformation intact.

Near the former site of numerous witch burnings, this lavish Edinburgh mainstay pays homage to Scotland's brutal history.

Anonymously sculpted and donated, these sculptures made from poetry books and pages are sprinkled around the city.

Inside this church are the alleged remains of the patron saint of lovers, epileptics, and beekeepers.

The ritual has been performed uninterrupted for nearly 700 years.

This single-track road rewards brave drivers with stunning Scottish scenery.

Also known as the Founding Church of Scientology.

The pockmarks across the building's facade are remnants of the Blitz.

This unassuming passageway played a key role in one of the most important events in U.S. history.

A secret greenspace hides atop a Capitol parking garage.

This historic structure has been used as a mosque, a barracks, a prison, a school, and a bakery.

The final resting place of the tragic king and queen of the Jazz Age is tucked away in a small Maryland graveyard.

The oldest standing Byzantine church in Athens is tucked within a monastery in the middle of an upscale shopping district.

A man's head is enshrined beneath a statue near the first building constructed for the modern Olympic Games.

The commemorative stone column conceals a secret laboratory.

This stunning blue and gold room changed cities twice before becoming part of the Smithsonian.

Giant pinnacles in the sun-scorched lands of Southern Utah have been nicknamed "white ghosts."

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

The oldest platform carousel built in the United States continues to delight children in Martha’s Vineyard.

A king's bloodstained shirt is among the gruesome collection of artifacts displayed below Stockholm's Royal Palace.