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

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

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

Mural made of 100,000 pieces of hand blown glass, and until recently, the largest glass mural in the US.

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

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

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

Century-old shop, specializing in Occult products.

Arlington Cemetery exhibit dedicated to death and grieving.

South Philadelphia is home to Keith Haring's only surviving in situ collaborative public mural.

This little-known Revolutionary War fort is supposedly haunted by the ghosts of its past.

North America's oldest quarantine facility was built in response to Philadelphia's 1793 yellow fever outbreak.

The only pollutant in the clear blue water is sunscreen.

Two elaborately decorated "catacomb saints" are displayed on either side of the altar in a small church in Germany.

An incredibly salty lake inside the crater of an extinct volcano.

The ruins of Brisbane’s own Alcatraz now sit in the middle of a national park.

An enormous overgrown greenhouse teeming with graffiti and wildlife.

The C. A. Nothnagle Log House stands as the oldest surviving log cabin in the United States, offering a remarkable glimpse into America's colonial past.

A condo complex once housed a boarding school with the 24th U.S. Vice President among its notable alumni.

Once considered a marvel of engineering, this 107-mile canal played an integral role in building New York City.

A cemetery that holds graves for the forgotten children of a burned orphanage.

An abandoned military bunker that has been transformed into an artist's paradise.

This 25-foot-tall gorilla made his way from the Wildwood boardwalk to a Pine Barrens gas station and deli.

Said to be haunted, this tower was constructed by a sugar importer as a gift to his wife.