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

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

This shop for all your super spy needs hides an educational secret.

A Bibliophile's Dream.

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

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

A museum dedicated to the alleged Roswell Incident.

This red-eyed chrome beast pays homage to the popular modern myth of West Virginia's insectoid monster.

A small storefront museum explores the history and myth of West Virginia's famous urban legend.

The only presidential monument to display a late POTUS's actual casket.

The angel of death appears to weep black tears at this grave marker.

A collection of Witchcraft artifacts and occult paraphernalia started by the leader of the Long Island Coven.

A single handprint, which, according to Ohio State University legend, cannot be scrubbed off.

This whimsical campus lawn is dotted with large sculpted numbers and hidden mathematical formulas.