A priceless collection of the Nation's cryptologic history.

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.

Eighteen miniature death-scene dioramas.

Local lore says two enemy dragons live within these breathtaking mountain lakes.

Colorado's only true geyser is hidden within the San Juan National Forest.

The flock of plastic poultry is an ode to the classic comedy staple.

A toxic ghost town sitting atop a massive coal fire.

Though its celestial ceiling is impressive, the true star is the vast collection of French books.

During the holidays, a vintage subway train whisks New Yorkers back in time.

World's largest collection of serial killer artwork and other macabre exhibits.

The only natural lake in the world that drains into both the Atlantic and Pacific Oceans.

A museum dedicated to the history and exploration of both popular music and science fiction.

The sweetest graveyard in the world is filled with headstones for dearly de-pinted ice cream flavors.

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

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

This massive redwood tree has a hole in the base big enough to drive through.

The world's largest public collection of PEZ memorabilia.

The most magnificent bottle house in a town strangely full of them.

Museum dedicated to awful artwork.

A three-story copper skybridge connects two Manhattan buildings with Art Deco luxury.

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

Abandoned bridge hidden deep in the San Gabriel Mountains.