California's own medieval Italian castle, authentic down to the 300-year-old iron maiden in the dungeon.

One of the ghostly stops along Route 66.

This brightly made over hotel hides decades of suicide, serial killers, and mysterious deaths.

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

This abandoned Navy base was transformed into an off-grid alternative living community for thousands of people.

Most famous work of one of Frank Lloyd Wright's sons.

A modern mechanical planetary system, part of a 10,000 year clock.

After starting as a whimsical tourist attraction that eventually found its way to ruin, these renovated canals offer a lush and exotic locale on the Pacific Coast.

"Looks so real, it's scary!"

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

A hand-built folk art installation covered with messages of God's love.

Resting place of Hollywood's immortals is also site of summer film screenings.

A huge musical instrument played by the ocean.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

A Winnebago Tribe collection featuring arrowheads, artwork, and a mysterious rock carving.

An experimental, automotive replica of Stonehenge.

Temporary Burning Man sculpture made of two 18-wheelers.

This railroad magnate's 19th century tower is more than a little bit out of place in the Nevada desert.

Nevada's largest cactus collection stands outside a candy mogul's small factory.

This Nevada lake holds its titular natural pyramid and, if the legends are true, a number of dangerous spirits.

A gothic palace of endless stalagmites and pseudoscorpions waits within one of the world's most beautiful caves.

Rippling sand dunes frozen in the Arizona rock.

This giant ice cream cone is the last remaining icon of a Salt Lake City staple.