The tunnel under the Capitol Building where Congress takes out its trash.

A cavernous three-story, 43,800-square-foot basement that was forgotten about for 60 years.

Niagara Falls holds a special place in Nikola Tesla's history, so they put a statue on it.

The only Leonardo Da Vinci painting in the Western Hemisphere.

This New Orleans statue of a portly figure in a goofy hat pays homage to a classic of satirical literature.

A house of courtship where the Jazz Age's most storied lovers got their start.

Taxidermied cartoon heads, unseen illustrations, and famous characters all reside in this small gallery space.

This "second" cemetery represents New Orleans' attempt to keep cholera at bay.

A collection of oddities including Dr. Kevorkian's suicide device, the Thanatron.

Once the site of a Native American harvest festival, this humble clearing later played an invaluable role in the birth of jazz.

The oldest cemetery in New Orleans, resting peacefully for over 200 years now.

The final resting place of New Orleans' most famous voodoo priestess.

In 2010, Nicolas Cage purchased two plots in this cemetery using one to construct this strange pyramid mausoleum.

One of the only Florida forts to remain in the hands of the Union all through the Civil War still stands as a historic stronghold.

Sit at the "Disney table,” where Walt and his team of "imagineers" once dined on the regular.

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

A Natural History and Science Emporium.

An atomic bomb-proof strongbox protects the U.S. Constitution from terrorists and thieves.

A beautiful collection of architectural ornaments rescued from demolished New York City buildings.

Once at the center of U.S. finance, the historic Trading Room was meticulously recreated piece by piece and rebuilt in the Art Institute.

New York's southernmost subway station is whimsically wavy.

The largest piece of cut lead crystal adorned a grave for 75 years and is now the shining star of a glass museum.

Check out the 125-pound chocolate reindeer in the back of this candy shop.

Though the case is scorched and the buttons half-melted, this hardy handheld gaming device can still run a game of Tetris.