This municipal playground was co-created by the father of one of the most playful characters ever.

Two rocks in a perpetual kiss and one of "the most romantic spot in America."

One of Savannah's oldest and most haunted cemeteries, featuring graves desecrated by Sherman's Union Army.

One man's ambition created this psychedelic log home.

A smoke stack so large, the Washington Monument could fit inside!

"Only the devil could play golf here."

The fairy tale castle of the "fairy-tale king."

It houses the remains of a 17th-century version of the Titanic.

Memorializing an American tragedy of massive proportions.

Macabre astrological automaton clock dating to the late 1400s.

The celebrated eyesore created by starry-eyed sweethearts.

The European towns of Brașov and Râșnov each have proud signs reminiscent of the Hollywood sign.

Romania's triumphal arch looks out over Bucharest.

The birthplace of an eccentric alchemist and possible inspiration for the fictional reanimator of monsters.

These medieval skyscrapers dominate the skyline of this small Tuscan town.

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

This private skyway is filled with art and was expanded explicitly so that Hitler could appreciate a river.

A mysterious chasm in the heart of the ancient Roman Forum, the Lacus Curtius was once believed to be a gateway to hell.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

A real flying saucer, contracted by the U.S. Air Force.

Ruins of a Carnegie family mansion on Cumberland Island.

A surviving remnant of the thick ice mass that once mantled most of Western Canada's mountains.

Fossils, railroads, and waterfalls!

Few other hotels can rival the grandeur of the Castle in the Rockies.