An optical illusion found amid a logged redwood forest.

The Kalamazoo factory has 100 years of instrument-making, and one big wartime secret.

This feline raises a friendly paw at drivers barreling toward the freeway.

The remains of an abandoned dinosaur theme park litter the woods just off the highway.

A Japanese concept restaurant that feels like a party thrown by the monsters in your closet.

Go through the looking glass in Tokyo's Wonderland-themed shop.

Local legend says the remains of Father Christmas lie within the medieval grounds.

The original toys that inspired the beloved children's stories are on display at the New York Public Library.

Home of the future Emperors of Russia.

Abandoned castle was once a grand example of Russian privilege, built exclusively to win a frivolous bet between noblemen.

Stunning examples of Russia's 18th-century wooden architecture.

This tower in a small Polish village uses the power of a sacred bell to ward off mischievous weather spirits.

A fairytale Gothic castle steeped in Nazi treasure conspiracy theories.

This Polish cave has housed a dragon, a brothel, and an enduring legend.

This uber-quaint Polish village is known for its habit of painting elaborate floral motifs on just about everything.

A monument to Lenin has been transformed into a statue of everyone's favorite black-helmeted, fool-choking Sith Lord.

This unlicensed collection of fast-food memorabilia sits on the site of the first ever McDonald's restaurant.

This little museum is built on a theater that was once a wildly elaborate speakeasy.

The feral felines of Roosevelt Island have a small army of allies and an abandoned hospital all to themselves.

Try not to get slimed in Tribeca.

Manhattan’s Battery Park has a whimsical carousel full of spinning, glowing fish.

A museum dedicated to the alleged Roswell Incident.

A working steam clock, one of only a few in the world, located in Vancouver's Victorian Gastown.

A 98-room castle in the middle of Toronto that bankrupted a 19th century electricity multimillionaire.