Over fifty whirling pools left by the glacial age.

The walkable ruins of an 19th century hotel, destroyed in a horse cremation gone wrong.

Three prestigious academic collections come together to create a world-class natural history museum.

The thousands of shades on display — some toxic, others impossibly rare — are a library of more than just color.

The often-overlooked ruins of one of the first buildings designed by famous landscape architect Frederick Olmsted.

One of the oldest used bookstores in the U.S. has been selling antiquarian treasures since 1825.

Two thousand artifacts from around the world collected by one woman who loved to travel.

A beautiful Victorian-era cemetery, complete with a miniature village.

The inspiration for H.P. Lovecraft's horror stories and Batman's Arkham Asylum is now a condominium complex.

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

An unusual library of dead things at the Rhode Island School of Design.

A railroad magnate's replica village has become home to a genetic seed bank for rare breeds of livestock.

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

Books bound in human skin and H. P. Lovecraft's letters are among a few of the treasures this library has to offer.

The exact whereabouts of this surreal cabinet of curiosities are rarely the same place twice.

This fairy tale-themed amusement park is now abandoned, and childhood metaphors abound.

A 19th century library favored by Edgar Allan Poe and H.P. Lovecraft, known by locals as "the Ath."

A terrific purveyor of natural history objects and curios.

The once-abandoned 140-year-old hotel used in the movie "In Dreams."

This futuristic airport terminal was abandoned for decades before reopening as a hotel—with a vintage plane of its own parked out back.

You can spend the night as an honorary lighthouse keeper in this quaint, historic beacon.

A stunning garden filled with fantastical environmental folk art and sculptures.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

A curious fountain that has no water and includes Satan, a crab, and 9 giraffes.