One artist's love letter to his city and its citizens plays out across dozens of bright murals painted on the sides of decrepit buildings.

This little-known collection holds everything from "Dracula" notes, to the manuscript of "Ulysses," to the forged works of Shakespeare.

The taxidermied remains of Charles Dickens' pet raven, which helped inspire one of Edgar Allan Poe's most famous poems.

A rare view of a preserved Victorian science museum.

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

Where America's first doomsday cult awaited the end of the world.

Philadelphia boasts one of the best — and most often overlooked — traditional Japanese gardens in North America.

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

World's first "penitentiary," meant to be humane, drove men insane.

Mozart's skull may be held in this collection, but definitive proof continues to elude scientists.

Catering to broken dolls for almost 200 years, this repair shop is now a charnel house of doll parts.

This shop and gallery is a modern-day cabinet of curiosities, unassumingly positioned along an urban thoroughfare.

A kaleidoscopic warehouse-maze of handmade neon signs.

A peculiar museum that includes many drunken tales, a drunk driving simulator, and much more.

A wonderfully strange collection of 500+ stuffed frogs doing people things.

One of the most important yet well-hidden museums dedicated to the history of medicine.

A particularly disconcerting tribute to Irish martyrs.

This small town in the Netherlands has no roads but instead, miles of canals and over 100 bridges.

This grisly effigy displays an early Christian martyr who was skinned alive and beheaded.

This curious building hides eclectic details like medieval gargoyles alongside naked angels and Art Nouveau mosaics.

A set of 27 bamboo tubes creates an eerie soundscape that changes with the wind.

A seven-century-old jail tells a not-so-pleasant history of crime and punishment.

Go inside a revolutionary, cage-less zoo where 70 species of monkeys roam free alongside their human visitors.