A crumbling hospital from the 1850s on Roosevelt Island.

Once defending the city of New Orleans from invasion by sea, this fort faces an uncertain future.

This bar named after the world's first mixed cocktail was home to one of New Orleans' most notorious politicians.

In 2010, Nicolas Cage purchased two plots in this cemetery using one to construct this strange pyramid mausoleum.

Despite the ever pressing encroachment of urban sprawl this grand New Orleans manse still stands.

A museum and shop on Bourbon Street located in the former home of the second Voodoo Queen of New Orleans.

A theme park that suffered massive flooding during Katrina was abandoned, and now proves irresistible to trespassing explorers.

Left untouched since a double murder-suicide in the 1960s, Los Feliz murder mansion remains a neighborhood mystery.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

Where a demonstration led to equal rights for one of California's most marginalized communities.

Hidden in the garden of physicist Erwin Schrödinger's house is a life-size figure of a cat from his famous thought experiment.

Constructed along the shores of Lake Zurich, this pavilion is a walk-through work of art.

Statue in Salem of the woman who starred as the witch Samantha in the sitcom "Bewitched."

A quiet memorial marks the spot where the victims of the Salem Witch Trials were executed.

A tiny monument to the classic American candy.

Silverware in the sidewalk outside a grocery store cements this neighborhood’s Italian culinary history.

A men’s restroom became a sandwich shop.

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

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

An enormous, inside-out glass globe built in 1935.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

This upscale streetwear store is hidden behind a fake Snapple machine in the back of a deli.

The Boston square dedicated to the dark poet who was born nearby.

The ruins of a Massachusetts prison farm can still be found crumbling the woods of a state park.