An intricately designed junk art house with four extravagant junk art cars hidden in the suburbs.

A curious little museum dedicated to the furry feline in the cat haven that is Old Town Kotor.

A magically clear, blue river that seems to spring from nowhere.

A humid oasis combines recreation with exploration in a unique underwater cavern.

A trash dump made beautiful by nature's power.

Celebrating the transformation of trash into objects of beauty.

The legendary building that needed ghostly approval before being built.

During prohibition, corrupt city officials ran drinking dens under the streets of Downtown Los Angeles.

Hidden deep in the Guatemalan jungle is a turquoise paradise of natural pools, caves, and waterfalls.

A 140-year-old castle with underground caves hidden in San Francisco.

On Japan's Tashirojima Island, cats are king.

The first artificial white water river course in North America cuts right through an Indiana city.

Holding multiple historical boats and an entire 19th century village, this New England attraction is the largest maritime museum in the world.

This museum collects over a century of automobile history including the iconic car from The Muppet Movie.

A retired tobacco farmer's pet project turned into a sturdy miniature city.

A palatial sculpture park was built illegally and in secret by a self-taught artist over 36 years.

Radioactivity still cause for concern at this urban explorer's paradise.

A large instrument played by the wind.

Once one of the largest producers of pig iron in the world.

This "floating railway" is one of the world's oldest monorail systems.

Steepest flood safety railway in the entire world.

Pennsylvania's highest point is spotted with boulders which were pushed to the surface by nothing but cold.

This titanic java kettle is one of the many kitschy landmarks located along America's OTHER famous highway.

Picturesque ruins once held off mighty armies.