This freshwater spring fills with 10,000 gallons of water per minute.

This grave marks the final resting place of a legendary frontiersman... unless it doesn't.

This vast kitty-themed collection illustrates the history of human-cat interaction.

The remains of the iconic train crash from the movie The Fugitive can still be found rusting along the Great Smoky Railroad.

A full-scale replica of a 1774 colonial settlement in Kentucky.

This magnificent Cincinnati graveyard is also a popular public park.

A lawless town deep in Death Valley was famous for its riches and death rate.

This South London cemetery holds the remains of more than 15,000 people.

Hear the quietest sound from across the dome.

A collection dedicated to the treatment of disease, held in London's oldest hospital.

A collection of comics, graphic novels, animation and caricatures devoted to exploring this often overlooked art form.

Medical history with an amazing, if frighting, collection of wax diseases on display.

One of the deepest indoor swimming pools in the world.

Theme park featuring miniature replicas of European monuments.

Climb inside an iron crystal magnified 165 billion times its normal size.

This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

Meet the bronze beloved pet to a family of famous peeing statues.

A little sculpture with a large wardrobe.

Three floors of musical instruments coming from all corners of the world and hundreds of years of musical history.

From Tintin to the Smurfs, Europe's greatest graphic icons are celebrated in a grand Art Noveau gallery.

When you're a great Russian Tsar, even your vomit gets a statue.

Dummies recreate radiological discoveries from history.

This Greek temple, open only an hour a day, was the site of a war of tastes between an architect and an artist.

A giant bug impaled on a 75-foot-tall needle.