Philadelphia boasts one of the best — and most often overlooked — traditional Japanese gardens in North America.

The oldest of only three existing statues of the great novelist stands in a city he did not care for.

The oldest active church in Pennsylvania is also the second oldest Swedish Church in the United States.

One of the oldest of its kind.

Golden and naked, the figure that was once the highest point in New York is all that remains of the second Madison Square Garden.

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

Yo, Adrian!

Instruments, apparatus, and rare books all relating to chemistry and its related sciences.

This overlooked courtyard and museum celebrate Benjamin Franklin's life and achievements.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

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

A daily replay of the experiment that proved the rotation of the Earth.

The origin of this mechanical boy was a mystery until he revealed his maker by writing it in perfect cursive.

The taxidermied remains of Charles Dickens' pet raven, which helped inspire one of Edgar Allan Poe's most famous poems.

A tour de force of a fountain, memorializing a man who loved fountains more than anything else.

This beloved marketplace mascot poops money and grants good luck.

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

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

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

This handsome giant is said to mark the birthplace of the mythical woodsman and even had a cameo in a Stephen King novel.

This museum explores the history of policing and is also home to a very popular taxidermied duck.

This is the sewer drain that was the inspiration for the opening scene of Stephen King’s classic novel “IT”.

The world’s first penitentiary, meant to be humane, drove men insane.

A clone-tree in Washington Square Park sprung from seeds that went to the Moon and back.