Nevada's largest cactus collection stands outside a candy mogul's small factory.

Formerly the world's largest, this Willy Wonka-esque contraption runs 24/7.

A blacklight mini-golf fever dream pays tribute to the iconic rock band.

An exotic wildlife habitat right off The Strip.

One of the world's tallest Ferris wheels takes visitors high above Las Vegas in a spinning party room.

The second-largest gold nugget in existence, displayed in a Las Vegas casino conveniently named the Golden Nugget.

This unique style of bridge is the last of its kind and runs over the straightest canal in Britain.

This museum dedicated to the famous comedy duo is located in the town where Stan Laurel was born.

Drink your espresso at a Victorian-era urinal in this underground-restroom-turned-coffee-bar.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

This one has sailed five times as far as Sir Francis Drake's famous ship.

Never actually a tree at all, this spot was the site of London's public hangings for nearly 600 years.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

A hands-off space for graffiti artists to hone and display their skills.

Hidden beneath the streets of London is a secret subway that only carried mail.

Come for the oysters, stay for the priceless art honoring inventors across history and Scotland's favorite outdoor sports.

A roadway designed for a visiting monarch.

This historic pub has maintained much of its 1906 decor, including a small sequestered room for women, where orders were slipped through a tiny window.

A book bound in the skin of an infamous criminal, along with countless other specimens.

This 17th-century street hidden beneath Edinburgh was once a breeding ground for the black death.

These tiny effigies are believed to represent victims of Edinburgh’s notorious Anatomy Murders.

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

This sculpture commemorates a naturalist and an illustrator whose work was a forerunner to modern field guides.

This century-old grotesque has a mysterious history and may not actually be a rabbit.