House used in the 1971 horror film "Let's Scare Jessica to Death."

This lighthouse was witness to the end of WWII hostilities and now collects creepy cairns.

A 60-room castle constructed by a horse-racing heir.

A simple Colonial home with a past haunted by death and madness.

An architectural statement of artistic intent smack in the middle of Providence, Rhode Island's Colonial uniformity.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

Every equinox this Maya pyramid puts on a spooky ancient light show.

Once the home of a hermetic monk, this cave now houses a small church.

Baroque celebration of the end of the Great Plague of Vienna.

A tropical paradise just a short trip from the opera house is filled with beautiful winged creatures.

Beautiful Austrian natural history museum with carved ceilings and row after row of ancient taxidermy.

The Habsburgs' royal collections of art and wonders.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

The strange, ritualistic-seeming 100+ year old basement of a New Hampshire undergrad society.

A historic Montreal market that was the city's agricultural hub for over century.

Cryptid lake monster honored with its own monument.

Scary metal statues adorn some of the signature buildings of Burlington, VT.

This New England covered bridge is home to the tale of a jilted lover known to haunt the area.

Concrete strongholds stand guard over the Golden Gate.

A living time capsule of the 1960s Richardson Bay water-front.

Only hotel where you can legally launder money.

This haunting tombstone comes complete with a heartbreaking story of love and loss.

One of Savannah's oldest and most haunted cemeteries, featuring graves desecrated by Sherman's Union Army.

"X" marks the spot of an echo chamber in the middle of a plaza.