Snow-capped peaks, colorful waterfalls and stunning vistas on the edge of the Himalayas.

A total of 999 stairs lead visitors through a massive hole in a mountain known as the Gateway to Heaven.

A part of the world's largest marsh seems to be growing bright red Martian grass.

A canvas of crops grow from vibrant red soil in this terraced farmland.

A fifth-century temple improbably built into the side of a cliff.

America's first public mental health facility.

The land is home to swimming ponies and a legendary 18th-century treasure.

This abandoned sea fort has become an accidental bird sanctuary.

The Decoy Capital of the World.

Walk through the history of American pop culture.

A museum dedicated to exhibiting remarkable outsider art.

What began as an art installation is now the private drinkhaüs for a brewery's employees.

Historic home of America's sweetheart sharpshooter, Annie Oakley.

Mural made of 100,000 pieces of hand blown glass, and until recently, the largest glass mural in the US.

Vintage cars and motorcycles race for glory in a throwback motorsport celebration on the Jersey shore.

Destructive children, start your engines.

The first American department store, and home to the largest operating musical instrument in the world.

The taxidermied remains of Charles Dickens' pet raven, which helped inspire one of Edgar Allan Poe's most famous poems.

This palatial botanical garden is home to one of the largest pipe organs ever installed in a private residence, and a piece of Wood's cycad.

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

This might just be the TARDIS of bookstores.

The home and studio of a visionary woodworker now stands as a museum and example of his artistic genius.

A park full of outsider art, created by college students studying outsider art.

The first of Lancaster's "rural cemeteries."