Tucked in the back of this amazing antique store is an important piece of medical history.

An enormous cat made of recycled wood scraps.

Six peaceful acres in a residential neighborhood dedicated to art and peace.

This massive chapel in the middle of the Indonesian forest is both haunting and fowl.

An eccentric inventor's castle home with its own indoor weather system.

Grandpa Rainbow felt the neighborhood needed some color, so he picked up a paintbrush and went to work.

It's not hard to see why the historic Peabody Conservatory of Music's library has been described as a "cathedral of books."

For over 80 years, Mayan ruins stood proudly in a most unlikely location.

Beneath Kraków Old Town's main square lies a hologram-filled medieval market vampire graveyard wonderland.

The life of one of FDR's possible mistresses is preserved in her palatial Hudson Valley mansion.

This stone gatehouse was once the entrance to a historic mountain resort, and it had a cameo in a cheesy cult horror movie.

The oldest continuously inhabited street in America.

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

A once grand hotel is being retaken by the wilderness it once capitalized on.

A stunning, two-tiered waterfall made famous by poets, artists and the legend of a ghost dog.

What was once a trend-setting, phrase-coining icon of architectural splendor is now a rotting, forgotten hulk.

"A hideous albatross in the Hudson River Valley."

This mouldering abandoned mental hospital was once a center for progressive healing.

The abandoned husk of a mental institution that failed to save a Jazz Age icon still sits nearly unchanged.

This lovely little pond is named after the hundreds of soldiers' corpses that were rolled into the waters during the French-Indian War.

Collapsing castle on the Hudson river was once the storage site of military surplus business.

A fictional town that was briefly brought to life before fading once again out of existence.

The author of Uncle Tom's Cabin was neighbors with Mark Twain while living in this Connecticut home.

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