The largest permanent Monopoly board makes one of the longest games even bigger.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

Once thought to be the oldest living tree in the world, Methuselah was germinated before the Egyptian pyramids were built.

The "world's biggest dinosaur" once housed a creationist museum in its abdomen.

Outsider art meets paleontology at this roadside reptile repository.

This unauthorized stone mermaid was secretly carved out of public stone before being permanently preserved.

The ghost town that ended up on Ebay.

The last of its kind in the country.

A once-booming Mississippi River town with a history of racial violence is now eerie and mostly abandoned.

Nondescript elevator doors open to reveal a stunning, surreal world.

A stone arch leads to a cavernous 1930s spring house tucked away in the Pennsylvania woods.

An outdoor sculpture park of giant pink robots and post-apocalyptic Christmas scenes.

A faux European lane smack dab in downtown L.A.

Brightly colored 30-foot-tall totems light up the desert sky just outside Las Vegas.

This free, take-a-book shop seems like a trick but isn't.

The intriguing personal collection of a professional demon-chaser.

A masterpiece of LGBT art has been restored in what may now be the most valuable restroom in America.

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

This Los Angeles animation studio is keeping the wonder of stop motion puppetry alive.

The one-time watch house for incoming ships at the Golden Gate now stands abandoned and hidden in trees.

One of New York's best collections of pinball is hidden in a secret bar in the back of this laundromat.

The oldest surviving bridge in New York City, which reopened to pedestrians in 2015.

Welcome to old Florida, where a 1940s mermaid show is still enchanting visitors.

One part antique store, one part curiosities hodge-podge.