The first American department store, and home to the largest operating musical instrument in the world.

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

The striking jade death mask of an ancient Maya king is displayed in a replica tomb in Mexico City.

This foreboding building was the headquarters of the terrifying Spanish Inquisition in Mexico.

This strange sculpture of a menacing skull surrounded by sun rays was discovered at the foot of the Pyramid of the Sun.

A scientific repository of goiters, boils and other ailments throughout Mexican history.

This amazing collection includes rare stamps from around the world, including fluorescent ones.

Great place to have a drink and a bite to eat in an atmosphere laden with New York's Bohemian past.

The oldest operating apothecary in the US has treated everyone from Thomas Edison to Mark Twain.

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

A hands-on traveling collection of the innovative devices of yesteryear.

A semi-scholarly approach to sex.

A terrific purveyor of natural history objects and curios.

An eerie, existential museum dedicated to the author of "The Metamorphosis."

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

Macabre astrological automaton clock dating to the late 1400s.

A fascinating insight into daily life in the Eastern Bloc.

Medical history museum featuring a lovely doctor's office from the 1800s.

The inventor of a number of hybrid corn species is immortalized with a field of giant corn.

The home made famous by the 1983 holiday classic is now a perfectly preserved shrine to the movie.

A collection of Witchcraft artifacts and occult paraphernalia started by the leader of the Long Island Coven.

A surreal museum of extraordinary industrial objects.

The famous artist couple lived and worked here, in two different houses separated by a bridge.