No one knows how many bodies are in this vault in a Chicago public park.

This awkward aquarium sculpture is one of the strangest statues in Chicago.

One of Chicago's last seafood smokehouses perfects a dying breed of fishcraft.

These pretty kitties killed and ate as many as 135 railway workers.

The only Bahá'í house of worship in North America and one of only a handful worldwide.

This historic hotel invented the chocolate brownie.

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

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

The subtle science of a master molecular gastronomist.

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.

A monument to the art of slicing people open.

An antiquated German apothecary on Chicago's North Side.

A giant bronze coil of feces is both a tribute to doggie defecation and a reminder to pick it up.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

There’s a secret bunker inside the Brooklyn Bridge, but the city won’t say where.

After traveling the world, one of the last remaining fully-rigged three masted iron-hulled cargo ship in the world found its home in New York.

Stroll through a wonderland of stupendous moss-covered trees.

This futuristic airport terminal was abandoned for decades before reopening as a hotel—with a vintage plane of its own parked out back.

You can still ride this 100-year-old work of art in Brooklyn's largest public park.

This hidden library of physiological ephemera contains centuries worth of knowledge on the vim and viscera of the human body.

Behind a bodega is a small museum of relics and ephemera showcasing the history of New York.

Tucked in a nondescript downtown Brooklyn mall is a bar containing a remarkable turn of the century anatomical wax collection last seen in 1920s Berlin.

The original toys that inspired the beloved children's stories are on display at the New York Public Library.