The sign at the garden gate reads: "These Plants Can Kill."

Most-visited and most-photographed slot canyon in the American Southwest.

The cinder cone volcano with a less than complimentary name.

A religious-themed park filled with folk art to bring biblical stories to life that fell into disrepair and now being restored.

This relatively recently abandoned brewery is a tragic reminder of the continuing effects of Hurricane Katrina.

The former home of Samuel Clemens and family remembers the happiest period of the author's life.

Architectural monsters are devouring this palace's every door and window.

The northernmost point in Denmark is a turbulent sandbar created by two clashing seas.

The only swimming pool listed on the National Register of Historic Places is emptied and refilled each day with naturally filtered water.

A fake town founded by Western movie stars is now becoming a hip desert community.

This Denmark theme park is part family attraction, part experimental archaeology project.

Four alabaster giants contemplate the tides on the shore of Denmark.

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

Fantastic collection celebrating the final send-off.

An arsenic-filled pool in the Grand Canyon takes on the appearance of a giant, overflowing pumpkin.

A classic Route 66 landmark that was built with scrap lumber and is held together with kitsch and puns.

What is the Thing?

This Arizona observatory is famous for investigations into Martian life, and as the place humans first spotted Pluto.

The biggest solar telescope in the world helps reveal the secrets of our sun.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

An Arizona museum with a collection of pharmaceutical oddities, including a jar of a gangster's chewed gum.

A self-built castle made by a mysterious man.

The only remnant of a small mining town is an abandoned railroad tunnel that is steeped in ghostly lore.

Prison made famous by The Shawshank Redemption has been out of commission since 1990.