This historic national park is covered in the stunning ruins of red rock pueblos.

See massive fossils that are over 200 million years old in northeastern Arizona.

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

This mile marker stands at the unofficial end of a highway built to defend the United States from a Japanese invasion during World War II.

Considered by many to be one of the most dangerous highways in Alaska.

At 238 feet above the bottom of a gorge this span is known as the biggest thrill on the road to McCarthy.

During the summer, surfers in Alaska take advantage of this inlet’s unusual water patterns.

The easternmost town in Alaska can only be accessed from Canada.

North America's first frozen mummified remains of an ice age steppe bison, the 36,000 year-old mummy named "Blue Babe."

A rare chance to get up close and personal with a 13-mile ribbon of ice near downtown Juneau.

The king of U.S. high points towers over every other peak on the continent.

The highest point in Alabama was almost completely deforested, but is now home to protected towers and trees.