The first American axe throwing club.

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

This park contains a number of standing stones meant to heal and inspire.

This hidden gem of a garden has one of the only surviving Victorian ferneries in America.

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

The oldest surviving botanic garden in the United States.

America's first serial killer rests in anonymity.

This Philly cemetery is the eternal home of many famous area residents, including Rocky Balboa's wife.

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.

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

A rare view of a preserved Victorian science museum.

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.

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.

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

A bronze plaque marks the site of the only show the "King of the Soul Singers" ever missed.

According to the legend, this strikingly beautiful hill has miraculous healing powers.

A tribute to the twin ideals of religion and patriotism, built by a Catholic priest from rocks, glass, and innumerable found items.

Almost half-way between the Equator and North Pole.

Eternal resting place of the grave robber and murderer who served as inspiration for many of cinema’s famous madmen.

An enormous park-like oasis, full of famous Chicagoans' graves.

A giant, Gilded Age mansion that once belonged to the beer baron of Milwaukee.

Once a speakeasy operated by Al Capone, this Milwaukee cigar bar is now a haven for ghost hunters.