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

This massive boulder is either a unique rock formation created by glacial melt or a magic energy vortex.

Despite his legacy of work in Spain, Cuba, and Florida, the larger-than-life writer's grave is a simple affair tucked in an Idaho cemetery.

A larger-than-life statue of America's favorite sundae marks the place it was invented.

An old abandoned mining town in The Adirondacks where Theodore Roosevelt first learned of the shooting of President William McKinley.

These mansions date back to Chicago's days as a brewer's paradise.

An abandoned Depression-era zoo hidden just off the highway.

A winding, cliffside stretch of road overlooking the Delaware River.

Home to the Amorphophallus titanum "Corpse Flower," which is among the largest flowers in the world and also smells powerfully of rotting flesh when in bloom.

This statue is dedicated to Grace Sherwood, the last person in Virginia to be convicted of being a witch.

The body of St. John Neumann and his collection of hundreds of relics, on display in a Philly church.

The ravine where Jesse James supposedly performed an impossible jump to evade capture.

Tucked away between two 19th-century buildings, this small shop specializes in the macabre.

A retro walk through the history of the tube.

Possibly the world's only drive-in movie theater with an attached motel.

One of America's first dinosaur parks gives a window into Depression-era paleontology.

A living snapshot of a different time in America is preserved and maintained by a community of volunteers.

This abandoned caretaker's apartment is one of 13 left in the New York Public Library system.

According to local lore, this narrow passageway through two large rocks was accidentally created by the devil himself.

A men’s restroom became a sandwich shop.

This cavernous abandoned marble mine is popular with ice skaters in the winter.

A few stone foundations and an old graveyard are all that is left of this once thriving settlement in the wilds of Connecticut.

The site of the first "historically true" UFO encounter in the U.S.

This razorback ridgeline has doubled as a scenic drive since the early 1900s.