Travel through the hidden underbelly of the city in colorful tunnels filled with art and history exhibits.

Nature's biggest mammal swims in landlocked Oklahoma.

The future of roadside attractions is this sci-fi soda mecca that is home to a 66-foot tall neon pop bottle.

An acoustic anomaly with a mysterious cause.

For over a century, it has been a tradition to raise a flag at the top of this 450-foot sandstone pillar on the 4th of July.

A dangerous narrow-gauge railroad once traced a route through this striking canyon.

A memorial dedicated to the victims of the Columbine High School shootings.

The final resting place of American icon Buffalo Bill, and a museum that aids in telling his tale.

Even in death, he's still your huckleberry.

Wall to wall taxidermy at Denver's oldest and most exotic steakhouse.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

A tunnel with windows, so you don't miss out on the impressive views.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

Erosion and various mineral deposits give this striking canyon its distinct color and soft appearance.

The notorious Wild West outlaw was raised in this unassuming abode.

One of the world's oldest and most massive living organisms is a grove of quaking aspens.

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

A collection of haunted objects and macabre oddities under one roof.

Brightly colored 30-foot-tall totems light up the desert sky just outside Las Vegas.

A family of fiberglass giants.

Foragers once flocked to this big beautiful bayou to hunt for pearls.

This downtown Dallas art installation is always on the lookout.

This ancient settlement contains some of the largest earthen mounds in North America.

This iron and wood Civil War city-ship was the first vessel to be sunk by an electrically detonated torpedo.