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

This beloved marketplace mascot poops money and grants good luck.

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

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

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

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

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

Step into a pastel time capsule where candy is truly dandy.

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

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

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

Ant sculptures march up the side of what used to be an iconic spot in punk rock lore.

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

Yo, Adrian!

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

A layered tribute to the work of mosaicist Isaiah Zagar.

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

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

This Delaware River bridge is emblazoned with a catty slogan from a more prosperous time.

These unassuming lighthouses have seen the first reading of the Pledge of Allegiance, the first wireless transmission, and more than one mystery.

Vacant Beaux-Arts buildings that serve as reminders of a beach town’s glory days.

A unusual sanctuary for abused and exotic animals in South Jersey.

Now abandoned, the first public health hospital in the U.S. saw more than one million immigrants from around the world.

A unique sculpture park that specializes in the huge and bizarre.