London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

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

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

This small New York museum celebrates the mountainous artwork of a Russian mystic.

The "Seinfeld" diner.

Harlem park dedicated to compulsive hoarders killed by their own junk.

This former crime corner has been turned into an eclectic community center.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

This collection of grinning ephemera has grown from basement to Brooklyn.

Reverend Jen's unique museum/living room showcases her troll collection.

The name of this famed hospital was once a byword for the horrors of medical and psychiatric care.

Mysterious 500-year-old tapestries depict a unicorn hunt.

A New York garbage depot holds a secret collection of weird and wonderful refuse.

The oldest surviving bridge in New York City, which reopened to pedestrians in 2015.

New York City's smallest piece of private property.

Order scoops of pandan, lychee, and black sesame at this family-run institution.

Try not to get slimed in Tribeca.

La Monte Young and Marian Zazeela's "Dream House" will immerse you in an ever changing world of sound and light.

The ruins of this Thomas-Jefferson-designed mansion have been left to crumble since the Christmas Day they burnt down.

A museum dedicated to the quirky and colorful world created by Springfield's favorite son.

The inspiration for H.P. Lovecraft's horror stories and Batman's Arkham Asylum is now a condominium complex.

A collection of full-size movie monsters opened to the public.

Crumbling ruins of the thermal baths that once attracted royals and aristocrats from throughout Europe.