This alley in downtown Chicago held the bodies of over 600 people after the fateful Iroquois Theatre fire.

The palatial McDonald's that inspired Wesley Willis.

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

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

This turn of the century masterpiece has a mysterious goaty interloper.

Not merely a museum – but a whirring powerhouse that offers a subterranean peek into the heart and soul of cable car operations.

A still functioning vaudeville carousel that has operated for over a century boasts a colorful menagerie and past.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

A collection of 20th-century automata, penny arcade games, and musical contraptions.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

One of the last surviving C-97s sits in a field in front of a Wisconsin inn.

The awe-inspiring ship from the golden era of cruising has an incomparable history and a reputation as one of the world’s most haunted places.

A gothic church spire sits atop this skyscraper, the tallest church in the world.

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

A huge musical instrument played by the ocean.