A memorial to the Potawatomi chief who allegedly ran nearly 150 miles to alert settlers of an impending attack.

Visit this playground of waterfalls, caves and sinkholes.

This family mausoleum is steeped in symbolism and looks more like a fantasy location than a grave.

Hundreds of glow-in-the-dark objects light up a museum in a historic zinc mine.

Travelers exchange letters with woodland creatures at this mini post office.

The restaurant keeps a hidden séance room on the second floor and reserves a table for the spirit of the former owner each night.

From scholastic to sepulchral - now under reconstruction.

Once the tallest building in the world and the site of "the highest dinner ever held in New York" this building now holds the most expensive penthouse in the city.

A nondescript building that's been functioning as a speakeasy for nearly a century and a half.

Collapsing castle on the Hudson river was once the storage site of military surplus business.

This weird abode has inspired everything from the "House On Haunted Hil" to a robot hunter's pad.

The world’s oldest and biggest bookstore stocking only mystery, crime fiction, espionage, and thrillers.

An artsy hidden staircase leads to breathtaking views of San Francisco.