The greatest real estate coup of all time.

A no-frills cinephile haven known for showing offbeat, underseen films.

The hotel where Martin Luther King Jr. was shot is now a museum dedicated to his work.

The 72-foot giant escaped confinement in a large patch of mulch only to be reburied in the sandy shores of the Potomac River.

This rare triple-jurisdiction drawbridge passes through Virginia, Maryland, and Washington, D.C.

After the oysters have been shucked, and the restaurant's been shuttered, the terrazzo sidewalk from the 1940s is all that remains.

The beautiful, fruit-covered facade hints at this building's former life.

This cathedral dedicated to Louis IX, sainted King of France, holds many secrets.

The oldest operational cathedral in the U.S. has one shell of a way of projecting speakers' voices.

The restaurant keeps a hidden séance room on the second floor and reserves a table for the spirit of the former owner each night.

A 200-year-old building in the French Quarter that was to be Napoleon's home in the New World.

Where school buses go to die and be reborn as whimsical works of art.

The old fire tower is one of the last of its kind in the United States.

Modeled after a famous church in Vienna, Austria—but in Helena, Montana.

The source of America's longest river is also a historical landmark and the start of a famous nude run.

Every St. Andrews student knows to avoid this inscription for fear of a martyr's curse.

The initials "GW" mark where one of Scotland's most important Protestant martyrs was burned at the stake.

Bronze plates placed around this Scottish fishing village form a true-scale model of the solar system.

These formal gardens were designed to be admired from the vantage point of the castle.

It's said this was once the home of King James V's pet lion.

A rare memorial paying homage to an altruistic woman from the 19th-century.

A remarkable feat of Victorian engineering across the Firth of Forth.

The half-finished remains of what would have been Scotland’s biggest piece of landscape art.

A double cantilever system bridge that was designed to prevent flood damage.