A legendary speakeasy bookstore returns from the brink.

A shape-shifting buy-sell-trade bookstore, born to Beatnik Era spirit.

Peek through a transparent pyramid and drink in the mountain made of books.

A Bibliophile's Dream.

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

Crammed into a Baltimore row house is an oddities shop that sells everything from skulls to dead insects.

Remnants of a storybook amusement park hidden behind a strip mall.

This abandoned asylum was once a state of the art facility before devolving into one of the most deadly mental institutions in American history.

The final resting place of two (or three) presidents, one vampire, and 18,000 Confederate soldiers.

An astounding collection of medical specimens, including bits of President Lincoln.

A hidden gem on the lawn of the U.S. Capitol Building designed by landscape architect Frederick Law Olmsted.

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

The final resting place of the tragic king and queen of the Jazz Age is tucked away in a small Maryland graveyard.

With over 100 jam-packed rooms to explore plus elaborate tea services and events, the Mansion on O Street is a hidden treasure.

The remains of a failed attempt at medieval nerdery are hidden deep in the woods of Virginia.

Exact replica of the ancient monument, but much, much lighter.

These eerie outliers of the lightning bug family glow a mysterious blue color.

The ruins of a cotton mill that was burned in the Civil War are still hidden in a Georgia forest.