Go take a picture with the inventor of the daguerreotype photographic process.

Perhaps the most scandalous statue of America's first president.

A three-story tower of books about Abraham Lincoln is one of the more unusual monuments to the president.

This stunning blue and gold room changed cities twice before becoming part of the Smithsonian.

There’s a hidden military meme engraved on the World War II Memorial.

The Byzantine, pre-Columbian, and medieval art at this stately mansion are some of the most under-appreciated collections in D.C.

A historic estate packed with George Washington's heirlooms, and its own nuclear bunker.

Fittingly, America's museum of architecture is itself a magnificently designed old building.

This beloved Baltimore spot features caged dolls, a giant Pez collection, and many, many mannequins.

Golden Gate Park's historic collection of plants.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

A lawn full of retired spacecraft on display at one of NASA's first research labs.

A little marble compass above George Washington's (empty) tomb in the Capitol marks where D.C.'s four quadrants intersect.

The Virginia farm where John Wilkes Booth met his grisly end is now largely forgotten.

The walls of the iconic dome are hollow and have a secret stairway.

A celebrity from the late Cretaceous period.

The rooster who crossed the road lives on forever in Takoma Park, Maryland.

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

105-foot wide giant metallic flower blooms anew every day in the heart of Buenos Aires.

Final resting place of one of the classic authors of horror literature.

Books bound in human skin and H. P. Lovecraft's letters are among a few of the treasures this library has to offer.

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

An architectural statement of artistic intent smack in the middle of Providence, Rhode Island's Colonial uniformity.

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.