Two stunning 17th-century libraries and a cabinet of curiosities.

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.

A former zoo turned public park, where visitors can hang out in the old animal cages.

No one really knows how these old hobby horses got here, but the herd keeps growing.

A crumbling stone stable and carriage house are all that remain of a manse that was once filled with Egyptian artifacts.

This uniquely designed bridge served as the city gate for Comacchio.

Dim sum, served in a grand old theater.

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

Designed as a place for patients to take in the scenery, this tower has a dark history.

Shop for books in the New Orleans house where William Faulkner once lived.

The restaurant keeps a hidden séance room on the second floor and reserves a table for the spirit of the former owner each night.

This symbolic piece of New Orleans architecture is also home to a few ghastly stories.

Celebrating an art form with a collection of puppets from all over the world.

This classic steam-powered train takes tourists on a nostalgic trip around the Connecticut River Valley.

Now home to hardy plants, these sand and gravel dunes once held back a massive prehistoric lake.

A free display of artistic lifesize dinosaur sculptures in a backyard garden.

This petite park lets visitors see and touch examples of fossilized dinosaur tracks.

Mansion and shopping center used in the 1975 film "The Stepford Wives."

Decades after testing the polio vaccine on unwitting patients, this historic mental hospital sits in ruin.

This abandoned cemetery is crumbling into ruin, exposing the artifacts and bodies buried there.

This abandoned factory on the Hudson River once churned out a million bricks a week.

Hundreds of numbered stakes hidden in the woods mark the graves of the lost souls of a nearby asylum.

A 19th century hat factory still stands as a crumbling ruin in upstate New York.

This once sprawling resort now sits abandoned, filled with graffiti and vibrant colors from an era long passed.