A 1,215-foot tunnel transports pedestrians beneath the River Thames.

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

The final resting place of soldiers' loyal canine companions.

The fountain marks the area where hundreds of accused witches were burned at the stake.

Near the former site of numerous witch burnings, this lavish Edinburgh mainstay pays homage to Scotland's brutal history.

A labyrinthine network of chambers with a storied past hides below Edinburgh's South Bridge.

The most loyal of little dogs, or a Victorian era publicity stunt?

This extinct volcano rises above Edinburgh and is special for its panoramic views over the city.

Go surfing on this urban wave, "hacked" by local surfers.

This beautiful 19th-century temple stands atop the ruins of its predecessor.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

The narrowest street in Canada was once a spot for dastardly doings, now a historic piece of Chinatown.

This historic Victorian hotel has a scandalous history of affairs and murder.

Greenery cloaks this serene sculpture inspired by the famous Lost Gardens of Heligan.

A massive sea stack famous for its appearance in The Goonies.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

This gorgeous beach hides behind two headlands in Oregon's Ecola State Park.

You might know it as the Overlook Hotel, but the inside is not going to be familiar.

The only way to see Pittsburgh is from the top of this lookout point, just like the ancient members of the native peoples did.

There aren't too many operational funiculars around, but Pittsburgh has two!

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

Oldest existing church in New York and the inspiration for Washington Irving's "The Legend of Sleepy Hollow."

The real-life site of Ichabod Crane's infamous gourd attack.

The world's only international cryptozoology museum is host to an unrivaled collection of mysterious objects.