The vast, legendary catacombs hold secrets much stranger than stacked bones.

Notorious artist squat renovated into legal studios.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.

The world's only museum devoted to the wonders of fluorescence.

More than five miles of underground passageways.

This small section of the Sleepy Hollow Cemetery is rotten with famous authors' graves.

"the sweltering inhabitants of Charleston and New Orleans, of Madras and Bombay and Calcutta, drink at my well . . . The pure Walden water is mingled with the sacred water of the Ganges."

The oldest cemetery in New Orleans, resting peacefully for over 200 years now.

Rusting, graffiti-covered tanks litter the beach of this island, once used by the U.S. military for target practice.

A bizarre roadside attraction and the first instance of miniature golf in the world.

World's largest college campus includes a wildlife sanctuary and a former movie set on more than 28,000 acres.

The ruins of a cotton mill that was burned in the Civil War are still hidden in a Georgia forest.

A building so large that it has its own weather.

Welcome to old Florida, where a 1940s mermaid show is still enchanting visitors.

Electrical pylon in the shape of Disney's beloved mouse.

Developers built a Walmart around one family's plot and constructed a mausoleum in the parking lot.

Civil War soldiers, captains of industry, and paupers all interred on historic grounds.

This abstract roadside poultry was saved from demolition by outraged drivers and pilots.

The beauty of urban decay, hiding some dark secrets.

An underground magnet for ever-changing street art.

This massive store is home to an eccentric collection of vintage, retro, and peculiar goods.

This intricate Hindu temple is the largest of its kind outside of India itself and was constructed like a giant puzzle.