This historic house museum that celebrates one of the world's most influential social reformers is also one of the most haunted locations in Chicago.

One-of-a-kind preserved ruins of an abandoned 1880s church in Chicago's Pilsen neighborhood.

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

The third-tallest lighthouse in the United States stands as a reminder of Atlantic City's early days.

Rising out of a clearing in New Jersey's Pine Barrens is an Aztec-inspired monument to the "Lindbergh of Mexico."

A unusual sanctuary for abused and exotic animals in South Jersey.

One of the oldest surviving bars in the United States, located at the site of the last skirmish of the American Revolution.

Built to house a chapter of the Knights Templar, this grandiose building is a relic of Freemasonry in Chicago a century ago.

A little-known subterranean street runs under some of the best-known buildings in Chicago's River North.

A hot dog stand where the heads are just as hot as the dogs.

Chicago's North Park Village was once the largest municipal sanatorium in the country.

The world's only known button museum.

The beloved home to all publications indie, erotic, and punky.

All of Chicago's wood-paved streets are long gone but two alleys remain.

A shining sculpture made of 3,115 lights, the number of visible stars in the Northern Hemisphere.

These abandoned grain silos and tunnels are an urban exploration dream.

Chicago's largest cemetery is full of beautiful Victorian monuments and more than a few ghost stories.

A hollow cement depiction of time's inexorable effect on the human body.

A haunting statue called "Eternal Silence" has quite the reputation among visitors with active imaginations.

This unauthorized stone mermaid was secretly carved out of public stone before being permanently preserved.

A century-old hotspot for jazz, frequented by everyone from Charlie Chaplin to Al Capone.

An antiquated German apothecary on Chicago's North Side.

A monument to the art of slicing people open.

This morbid, delightful curiosity shop offers everything from animal bones to human teeth.