A 16th-century horror show built in a lovely Italian garden.

This massive library holds what was once the largest book collection in the world.

A collection of oddities including Dr. Kevorkian's suicide device, the Thanatron.

The final resting place of New Orleans' most famous voodoo priestess.

A house carved into a rock in the 1940s.

The world’s oldest and biggest bookstore stocking only mystery, crime fiction, espionage, and thrillers.

This Boston medical museum features the skull of the famous medical case of Phineas Gage.

Elevated freight railway turned wildly successful urban park.

New York's oldest magic store.

The oldest family-run luncheonette in New York, last renovated in 1948, still serves food and drinks the old-fashioned way.

Try not to get slimed in Tribeca.

Manhattan’s Battery Park has a whimsical carousel full of spinning, glowing fish.

A bizarre house filled with an astounding array of collections.

High on a hill overlooking Los Angeles lives a world famous, high power conical Tesla Coil.

The legendary building that needed ghostly approval before being built.

The world's only museum devoted to the wonders of fluorescence.

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

This beautiful building in the heart of Manhattan's Financial District was empty for decades.

A snapshot of the city's fascinating voodoo culture.

An eerie, derelict amusement park in Berlin.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

A collision of human error and natural geothermal pressure created this rainbow-colored geologic wonder.

A terrific purveyor of natural history objects and curios.

During prohibition, corrupt city officials ran drinking dens under the streets of Downtown Los Angeles.