A suspended garden, now gone, once hung in the middle of this abandoned church.

Historical structures and natural wonders await visitors to this preserve.

Hidden on two floors of downtown building, the library has an incredible deal on rent.

Rhode Island's tallest building bears a resemblance to the "Daily Planet" building and has been empty for more than five years.

Rumors of the occult haunt this upscale 1920s hotel.

A 19th century library favored by Edgar Allan Poe and H.P. Lovecraft, known by locals as "the Ath."

Sniff the Titan Arum's rotting flesh.

Ride the subways of yesteryear.

The haunting, dilapidated remains of a former poorhouse on Staten Island's Greenbelt.

During the American Revolution, this mansion hosted failed peace talks between the British and Americans.

A town trapped in time - 1958 to be exact.

This small and serene place for quiet reflection on Staten Island was built in China based on the gardens of the Ming Dynasty.

This empty Victorian manse on Staten Island is said to be haunted but is actually a real life crime scene.

Once America's longest-manned military fort, now an abandoned hulk.

This might just be the TARDIS of bookstores.

This palatial botanical garden is home to one of the largest pipe organs ever installed in a private residence, and a piece of Wood's cycad.

These tourist trap caverns are said to be the former home of a legendary Pennsylvania Hermit.

Once the "Eighth Wonder of the World," this iron railroad bridge was decimated by a tornado.

These beautiful ruins deep in the Pennsylvania woods are thought to have been a ski lodge or a speakeasy, but no one really knows.

Sail through this subterranean show cave that is home to a legend that would go on to name nearly everything around it.

A stone arch leads to a cavernous 1930s spring house tucked away in the Pennsylvania woods.

Frank Lloyd Wright's most iconic home dangles over a Pennsylvania waterfall.

In the bowels of a 19th-century brewery lurks a fine-dining restaurant offering an array of themed feasts.

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