Cryptic messages embedded in the New York City sidewalk.

A good place to research the Freemasons, esoterica, occultism, and hermeticism.

Reverend Jen's unique museum/living room showcases her troll collection.

A rare view of a preserved Victorian science museum.

Century-old shop, specializing in Occult products.

Philadelphia boasts one of the best — and most often overlooked — traditional Japanese gardens in North America.

One artist's love letter to his city and its citizens plays out across dozens of bright murals painted on the sides of decrepit buildings.

Delicate Wurlitzers, creepy clowns, and The Noid all share space in this insane explosion of kitsch history.

Sail through this subterranean show cave that is home to a legend that would go on to name nearly everything around it.

A macabre farm reserved part of its 222-acres for dead bodies, all in the name of science.

Penn State's giant bug collection.

These tourist trap caverns are said to be the former home of a legendary Pennsylvania Hermit.

An almost life-sized elephant named Ms. Ellie greets visitors at this jumbo-themed museum.

An extensive, if one-sided, history of U.S. law enforcement's war on drugs.

A secretive collection featuring objects that were designed specifically for U.S. intelligence operations.

The country's oldest continually-operated mini golf course lies hidden in plain sight, eclipsed by one of D.C.'s most popular tourist attractions.

The oldest continuously operating fish market in the United States.

Home to items never before seen by the public.

America's Most Wanted's set resides in this tribute to the history of crime and punishment.

During the Industrial Revolution this “Temple of Invention” was full of intricate miniature machines and gadgets.

The shelves in the back of this thrift store are devoted to saving, not selling, retro tech.

Bar full of oddities, specimens, artifacts and homages to the great dime museums of the past.

Giftshop catering to cryptozoologists and anyone with a sense of humor.

One of the dwarven trees dates back to 1625 and survived the Hiroshima bombing.