The world-record holder for the longest bridge stretching continuously over water.

Back in 1952, you could get a mushroom cloud chaser with your atomic cocktail.

The walls and streets of the ancient city are peppered with penises.

A statue honoring 44 continuous years of greeting passing ships.

A series of waterfalls and pools that flow through the 'Ohe'o Gulch and into the ocean.

The enormous 250-room Vanderbilt mansion conceals hidden doors and secret passageways.

A 300-ship graveyard, with a few still visible at low tide.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

A fearsome dragon clings to a corner of Munich's city hall.

Legendary site where an evil bishop was devoured by rodents.

A magical sinkhole on the Yucatán Peninsula is adorned with mini waterfalls and hanging vines.

In the days before house numbers, these colorful signs held clues about various buildings' purposes.

The body of at least one victim of a construction accident was left behind in the collapsed pylon, buried under tons of concrete.

A church filled with the bones of hundreds of virgins martyrs—or so they say.

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.

Largest illuminated advertisement sign in the world.

The attic of a four-century-old canal house hides a clandestine church.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

Sitting in the basement of a castle, the largest wine barrel in the world is bigger than most apartments.

A small but immensely extravagant palace built by the "Night King."

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

The birthplace of the builder of the Statue of Liberty is now a museum dedicated to his work.

There has been an astronomical clock on this spot since the 14th century.

Tiny castle in the middle of the Rhine made you pay to pass.