"Dark Sky Park" is heaven on Earth for astronomers, one of the rare U.S. locations with no artificial light pollution.

"World's largest scrap metal sculpture" stands in an outdoor sculpture garden in the middle of Wisconsin.

Outsider art meets paleontology at this roadside reptile repository.

A sculpture made of 10 Cadillacs as a monument to the "Golden Age" of the American automobile.

Famously misunderstood wonder of the ancient world

Quite simply the largest tree in the world (by volume).

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

Less a museum than a bizarre fantasy world created by artists and engineers.

The magic's in the hole!

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

The first declared National Monument in the United States.

The United States Capitol's former columns still stand.

Elevated freight railway turned wildly successful urban park.

A bizarre house filled with an astounding array of collections.

Yo, Adrian!

A museum dedicated to the strange and extravagant costumes and memorabilia of the mummers, a tradition older than Philadelphia itself.

A layered tribute to the work of mosaicist Isaiah Zagar.

Early habitat dioramas and home of the elusive gaff, the skvader.

Sweden's "good old days" painstakingly re-created in a model village.

It houses the remains of a 17th-century version of the Titanic.

Once housing children next to hardened criminals this historic jail once displayed Ned Kelly's skull until it was stolen.

The bullet-banged DIY suit of armour belonging to Australia’s most famous outlaw.

These mythological giants take time out of their busy day guarding a Victorian market to let you know what time it is.

The word 'wunderkammer' translates as 'wonder-chamber'. This Wunderkammer is both a museum and a retail store.