The world's largest indoor go-kart racetrack is hiding in Connecticut.

Home of Philip Johnson, one of the 20th century's most influential architects.

An abandoned Depression-era zoo hidden just off the highway.

A famed data visualizer's personal sculpture garden is a landscape of modern and megalithic wonders.

A seasonal movie monster museum featuring wax creations by a relative of one of the original Universal Studios monsters.

Ruins of a historic medical facility sits eerily by the water.

The once abandoned ruins of a Victorian beachside amusement park are now back in working order.

With some 500,000 books across five buildings, this bookstore is a reader's paradise.

A museum designed by and dedicated to P.T. Barnum in the town where he is buried.

The kind of mixed-up place that drives archaeologists crazy.

Quirky castle designed by the American actor best known for portraying Sherlock Holmes on stage.

An Escher-inspired library dedicated to the wonders of the human mind, yet closed to the public.

The intriguing personal collection of a professional demon-chaser.

A religious-themed park filled with folk art to bring biblical stories to life that fell into disrepair and now being restored.

The world's best collection to gauge whether or not you should wear a scarf outside.

Small shop offering mail-order rare and exotic plants.

This 50-foot rock formation looked like a face that was once believed to be that of a Native American chief.

"Try not to knock anything over!"

This decrepit abandoned building is made all the more eerie by its dark history.

The macabre paintings created by famous suicide proponent Jack Kevorkian, or "Dr. Death."

This "life-size" depiction of Mickey Mouse as a half-lobster is both whimsical and a bit creepy, standing guard over the Boston waterfront.

Run by a eugenics advocate, this aging institution conducted secret radiation experiments sponsored by Quaker Oats.

A monument marks where a convent was burned by an anti-Catholic mob in 1834.

Eliot was the first missionary to produce religious text for Algonquians in their own language.