This southwestern historic site was designed and built by an artist who wanted his work to "feel at home."

A reproduction of earth's many biomes.

An abandoned facility that has become a place of ritualistic satanic worship, or so rumor has it.

The artist James Turrell is repurposing an extinct volcano crater as an observatory to experience the cosmos.

The highest point in Arizona is an oddly snow-topped peak within the otherwise arid state.

A stealthy Apache hideaway that became the haunting site of a mass grave.

America's smallest "national forest" has only 33 trees.

One of the final concrete ships built before World War II is now a crumbling breakwater.

Stroll through a wonderland of stupendous moss-covered trees.

Massive crater in central Oregon.

This ghostly Alaska village still clings to a steep cliffside despite having been abandoned for over 50 years.

This historic steamboat is scuttled just a few hundred feet from where it was built over a hundred years ago.

A morbid gateway to an Alaska town prides itself on the hunting history it represents.

A famed drink seasoned with an amputated toe, now on its tenth digit.

Upside-down trees serve as natural flower pots in this hanging garden of Alaska.

Four-story concrete hotel never opened to customers.

While not recognized by Guinness, this chocolate waterfall is likely to be the world's largest.

A trading post in the North Pole where children send letters.

An abandoned aircraft sits submerged in a lake in the Alaska wilderness.

The king of U.S. high points towers over every other peak on the continent.

Gorgeous cave resemble a winter wonderland.

An Alaska livestock farm devotes itself to harvesting wool from creatures that once ran with mammoths and sabertooth tigers.

Travelers exchange letters with woodland creatures at this mini post office.

Hundreds of trees made from glass bottles make up this forest on Route 66.