In Tucson a giant metal snake helps pedestrians cross a busy highway.

Witness to many historic moments in early Texas history.

This historic Civil War church has survived over a century of racial turmoil but still stands as a reminder of the town's roots.

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

Legends surround this jagged rock formation in the New Mexico desert.

A recreated Stonehenge stands in a country field, complete with Easter Island moai heads standing as sentries.

Where Elvis Presley received his first Army buzz cut.

The maximum security facility was once thought to have "the bloodiest 47 acres in America."

This zombie-themed restaurant stands out in the heart of corn country.

One of the few working locomotive roundhouses in the United States.

The only surviving prototype for Buckminster Fuller's house of the future.

This quaint stretch of road is the final resting place for hundreds of America's four-legged veterans.

The evolution of recreational vehicles and motorhomes is on display in the “RV capital of the world."

The longest structure of its kind ever built in Michigan.

The birthplace of America's favorite fruit-flavored mystery dessert.

A towering cemetery monument honors a man who threatened to expose the Freemasons and paid with his life.

This twisty sign depicts the chain's first logo.

Oldest and rarest examples of telecommunication in the world.

This psychedelic tromp l'oeil seems to be beckoning drivers to crash into a wall.

This titanic steel chain linking two buildings was installed without permission but instantly beloved.

A sweet tribute to Georgia's official state vegetable, which even has its own mascot: "Yumion."

A once-groundbreaking power plant turned into a hotel and mini-museum of archeological and geological wonders.

The first public building in Savannah to offer air conditioning was a luxurious cinema that still operates today.

One of Savannah's oldest and most haunted cemeteries, featuring graves desecrated by Sherman's Union Army.