Funded by John D. Rockefeller, this is one of the earliest, and most beautiful, shopping arcades in America.

This spectacular public market has got meat, fish, vegetables, baked goods, and enough kielbasa for a lifetime.

This Czar-funded, onion-domed, lavishly muraled Orthodox Church played a starring role in "The Deer Hunter."

The home made famous by the 1983 holiday classic is now a perfectly preserved shrine to the movie.

Though it may look like it’s missing its outer shell, this skeletal cast-iron tower was built to withstand wind and waves.

These lush botanical gardens employ the most purrfect pest control force.

This palatial botanical garden is home to one of the largest pipe organs ever installed in a private residence, and a piece of Wood's cycad.

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

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

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

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

Trace the history of the nation’s early days at the site of America’s oldest stock exchange.

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

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

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

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

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

Yo, Adrian!

One of the finest examples of a black soil prairie that was barely saved by the Great Depression.

In a cemetery full of holy men, mobsters, and haunted graves, among the most remarkable graves an ordinary husband and wife's spinning headstone.

Julia Buccola Petta's body was peculiarly well-preserved when it was exhumed six years after her death.

Burial site of the notorious Chicago gangster.

A board game enthusiast's love for the game, memorialized forever.

This historic store hides a museum exhibiting a shoe-sizing x-ray machine and a pair of kicks that once belonged to the world's tallest man.