The world's largest carnivore sanctuary is home to over 450 meat-eating rescues.

Neal Cassady may still have an open tab at one of Denver’s oldest watering holes.

This 28-foot-tall milk can contains one of the most whimsical ice cream parlors in town.

This tremendous timepiece was once the largest cuckoo clock in the world.

A rare water-powered funicular, it uses a huge tank of water and gravity to do its work.

A unique auditory experience right on the sidewalk.

While you wait to cross the street at a traffic light in Mainz, you might notice that the light is staring back at you.

Rediscovered after a century, the father of the American Navy was reinterred in something dredged up from Davy Jones’ locker.

A rare 18th-century heating system tucked inside a historic colonial home.

This statue honors the author's groundbreaking family story.

This Annapolis home was built by one of the signers of the Declaration of Independence.

Built to test magnetically levitated elevators, the tower also boasts Germany's highest visitor platform.

This statue has a painful history, but activists have since recontextualized it as a way to educate visitors about the dangers posed by fascist regimes.

A grumpy old water goblin guarding an old mill on the Devil’s Stream in Prague.

One of the most well-preserved castles in Italy also contains a rare medieval example of a port fortification.

A remnant of the Franco-Prussian War, lodged in the city's walls.

Originally meant to hold a statue of King William IV, this support sat empty for years. Today, it hosts a rotating cast of public artwork.

These official units of measurement—including chains and perches—lie hidden beneath tourists' feet in a popular London hub.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

These wire animal sculptures commemorate the exotic inhabitants that once called the Tower of London home.

Soon after its unveiling, this giant inverted globe sparked controversy and was vandalized.

The quaint little store that is said to have inspired a famous Dickens novel was only given its name after the book was released.

The (fictional) address of Sweeney Todd's bloody barbershop.