This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

Built hundreds of years ago this downtown iron barrier once protected a much despised king.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

A Victorian cemetery in the heart of Brooklyn remains a popular mecca of morbid curiosity.

The fastest mail service in the west is tracked and memorialized along this 1,400 mile trail.

The house where the famed outlaw was shot by a dirty coward is now a museum to the criminal's legacy.

The history of the treatment of mental illness, illustrated in all its gory detail, and housed in an asylum.

The show pony of cave systems, Fantastic Caverns manages to live up to its name.

Fresh wooden posts have been added to ancient holes to recreate a primitive henge clock.

Once one of the world's great cities, Cahokia was a place of religious worship, trade and mass human sacrifice before being mysteriously abandoned.

Four, 18-foot-tall badminton shuttlecocks lie scattered about the lawn of a Kansas City museum.

Two hundred tons of pioneer artifacts were painstakingly recovered from a shipwreck at the bottom of the Missouri River.

The Magic House provides a beautiful and creative environment for curious youngsters to get their knowledge on.

European castle ruins in an American state park are actually the product of death and grief.

This 40-foot fowl marks the so-called "wild goose capital of the world."

Destroyed by flood waters, prison now serves as a training ground for armed forces.

A geological oddity formed by two rivers carving out a mass of limestone on both sides.

Curious cave that stays a cool 56 degrees all year long.