The site of a tragic massacre that spawned a multimedia franchise.

Some of the earliest burial grounds of New York State are to be found hidden away in this quaint town.

A Victorian cemetery in the heart of Brooklyn remains a popular mecca of morbid curiosity.

The world's largest collection of materials relating to lesbian history is housed in a Brooklyn townhouse.

This outpost of America's most popular fast-food restaurant is housed inside a palatial mansion.

Better known as the "Body Farm," this unique research facility has been studying how human bodies break down since the 1980s.

Another of California's unused Cold War missile defense complexes has become a graffiti gallery.

The most beautiful Taco Bell in the world even has surfboard parking.

The graffiti-covered remnants of a former triangulation station are balanced precariously on this California peak.

Treehouse motel and treehouse-building school.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

A calm and comfortable place to hang out with cats and kittens up for adoption.

A collection of oddities including Dr. Kevorkian's suicide device, the Thanatron.

By day this New Orleans square is for pedestrians, but by night it is a kingdom of kittens.

This New Orleans tree is filled with hidden chimes that produce a carefully tuned melody.

The ruins of a once-grand mansion in Northern Ireland are now thought to be haunted.

An underground paleo-Christian burial site composed of the remains of several cemeteries and Basilicas.

An island filled with hundreds of hanging, decomposing, decapitated dolls.

This amazing example of Valencian Art Nouveau looks more like a cathedral than a public market.

The remains of a majestic house that was once stood in the crosshairs of the Irish Republican Army.

Two graffiti towers stand like ghosts of Vancouver's World War II-era defensive outpost.

Series of storm drains connected to a dark urban legend.

It turns out that a hurricane-prone beach is probably not the best place to house wild animals.

An abandoned water sports stadium that has become a haven for graffiti and decay.