If drivers cross the rumble strip on this stretch of Route 66 at just the right speed it plays "America the Beautiful."

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

The land is full of geologic eye candy, such as otherworldly spires, mushroom-shaped hoodoos, and prehistoric fossils.

Vikings and Evangelicals have both had a hand in this replica medieval church.

These molds for fiberglass statues have formed an eerie, accidental sculpture park.

The only rotating bar in New Orleans has been slowly spinning since 1949.

A century-old network of freight tunnels underneath the city's historic business district.

This weird abode has inspired everything from the "House On Haunted Hil" to a robot hunter's pad.

The legendary building that needed ghostly approval before being built.

A house of courtship where the Jazz Age's most storied lovers got their start.

Tucked away on a scenic trail, a modest memorial honors one of the greatest writers of our time.

Boise State's stadium was the first non-green football field in the world.

The site of the climactic scene from the classic horror film is now a historic landmark.

A Swedenborgian glass church surrounded by redwoods sits perched atop a massive landslide area.

Each year these high desert hills are absolutely covered with poppy flowers in a surreal show of nature.

A multimedia experience that chronicles the atrocities of racism.

Stroll the grounds built by murder, suicide, and dirty oil money at one of Hollywood's most filmed mansions.

Venue for strange sideshow displays and musical acts.

America's most famous piece of self-built architecture.

Because there's no place like home.

Left untouched since a double murder-suicide in the 1960s, Los Feliz murder mansion remains a neighborhood mystery.

The site of a classic series of Laurel and Hardy pratfalls.

Giant Redwood-themed cafeteria operates under the golden rule, "Dine Free Unless Delighted."

Magical-looking cottages that inspired one of the most famous animated films ever.