Washington's iconic carousel has a nice piece of Civil Rights history.

A Montreal deli that was so beloved that it was allowed to circumvent their laws of language.

A grand Gothic Revival basilica with stained glass depictions of Montreal's religious history has only one soul resting in its crypt.

A 131-year-old wunderkammer of Texas history.

The walls of America's oldest masonry fort famously "swallowed" cannonballs.

A luxurious 1880s hotel with its fair share of Tiffany stained glass, Edison electricity, and of course, ghosts.

An 18th-century Spanish watchtower made entirely of seashell and concrete.

Arrr! The most authentic collection of pirate artifacts in the world... matey.

The world's only and thus largest collection of its kind celebrates everyday wonder through simple umbrella sheaths.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

The first museum in the world devoted to sexual gadgetry.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

Once the home of a hermetic monk, this cave now houses a small church.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

The world's largest public collection of PEZ memorabilia.

Holding multiple historical boats and an entire 19th century village, this New England attraction is the largest maritime museum in the world.

The ancient past meets the retro-future at these dinosaur tracks that are protected by a geodesic dome.

Quirky castle designed by the American actor best known for portraying Sherlock Holmes on stage.

The show pony of cave systems, Fantastic Caverns manages to live up to its name.

A 35-foot-tall fork stuck in the ground outside an office building in Missouri.

The fifth tallest statue in the United States is a shirtless monument to the oil worker.

A dark patch of the ceiling at Grand Central Terminal which was not restored is still stained brown by tobacco.

Slyly buy a shake in the Parker Meridien lobby.