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

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

An almost life-sized elephant named Ms. Ellie greets visitors at this jumbo-themed museum.

Within this beautiful Pittsburgh cemetery, a unique headstone bears witness to one man's eternal love for Jaws.

Steepest flood safety railway in the entire world.

This secluded walking trail is a hidden gem of a Pittsburgh park.

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

America's first serial killer rests in anonymity.

This titanic java kettle is one of the many kitschy landmarks located along America's OTHER famous highway.

A quiet, gothic haven nestled between Pittsburgh's Squirrel Hill and Point Breeze neighborhoods.

Pennsylvanian mass grave and possibly mass murder.

The largest university building in the West is a gothic masterpiece containing dozens of theme rooms based on different countries.

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

Eccentric concrete mansion and museum designed and built by hand from the inside out.

This abandoned Poconos resort is haunted by a history of kitschy romance and a violent fugitive.

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

Collection of trolley cars in the woods represent one man's attempt to preserve transportation history.

Huge masonic hall in Philadelphia with lavishly themed rooms.

An abandoned stretch of highway, deteriorating next to the operational one.

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

After starting as a whimsical tourist attraction that eventually found its way to ruin, these renovated canals offer a lush and exotic locale on the Pacific Coast.

It should come as no surprise that the best view of the Hollywood sign is from Batman's lair.

World's largest collection of serial killer artwork and other macabre exhibits.

Statue in Salem of the woman who starred as the witch Samantha in the sitcom "Bewitched."