This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

Look closely and you’ll notice that the color changes a third of the way up the tower.

A man-made island in scenic San Francisco Bay.

The last of Philadelphia's wood-paved streets is now a landmark of terrible engineering.

Alexander Hamilton’s creation caused quite a bit of controversy.

An Irish Memorial commemorating those who perished due to potato blight.

The sounds of the world's largest fully functioning pipe organ dazzle shoppers at a Philadelphia Macy's.

This elaborate towering structure was once famed for its revolutionary height.

Yo, Adrian!

The first American department store, and home to the largest operating musical instrument in the world.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

This little-known collection holds everything from "Dracula" notes, to the manuscript of "Ulysses," to the forged works of Shakespeare.

Where America's first doomsday cult awaited the end of the world.

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

World's first "penitentiary," meant to be humane, drove men insane.

This distinctive Crescent City tradition dates back to the days of horse-drawn carriages.

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

A small park on Bourbon Street features life-size bronze statues of New Orleans musicians.

This bar named after the world's first mixed cocktail was home to one of New Orleans' most notorious politicians.

Storyville was New Orleans' historic red light district and hotbed of jazz music, sometimes referred to simply as "The District."

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

The man who voiced Bugs Bunny, Daffy Duck, Porky Pig, and more has a headstone reading, "That's all, folks!"

A black and white mural stands out from its psychedelic surroundings.

Legendary frontman of the Doors looms in this giant mural by famed Venice muralist, Rip Cronk.