The kind of mixed-up place that drives archaeologists crazy.

The former home of Samuel Clemens and family remembers the happiest period of the author's life.

This public space is speckled with the eerie remnants of a defunct amusement park.

These beautiful ruins deep in the Pennsylvania woods are thought to have been a ski lodge or a speakeasy, but no one really knows.

The remains of a community that was forced to move for a dam that never materialized still rot in this Pennsylvania park.

In the bowels of a 19th-century brewery lurks a fine-dining restaurant offering an array of themed feasts.

Two hula hoops appeared on the tree after a storm, and the collection kept growing.

Eight feet in diameter and more than 24 feet around.

This remote island in Iowa was abandoned after being devastated by flood.

The world’s largest truck stop includes a barber shop, chiropractor, and a huge museum with antique trucks.

Beating out all other concrete competitors, this massive garden feature's pointy hat has earned it a world record.

A giant pair of thick black glasses mark the tragic demise of a trio of rock and roll legends.

A number of gruesome unsolved murders have turned this simple home into a morbid tourist trap.

A half-mile long and three stories high, this bridge over the Des Moines River Valley mimics a descent into a mine shaft.

Unlike most arches, this geological oddity formed in a volcanic dike.

A mental health hospital dating back more than 139 years, now features a museum.

This Boeing KC-97 tanker is now a restaurant for aviation lovers.

The wreckage of a World War II bomber is hidden high in the Colorado wilderness.

The world's largest washing machine collection has more than 1,400 antique items in its exhibit.

This "zoo" is a cross between a junkyard and a sculpture garden, featuring animals you won't see anywhere else.

These decaying bridges 1,000 feet high are a reminder of the skill it took to cross the Colorado Rockies by rail.

Happen to come across a dead eagle? Send it to America's official dead eagle warehouse.

An impressive collection of over 50,000 minerals including moon rock from the Apollo 17 mission.

This massive home was constructed by one of the greatest conservationists in Colorado history.