The highest bridge in America was built for an almost unnervingly small amount of money.

This razorback ridgeline has doubled as a scenic drive since the early 1900s.

This naturally-sourced hot spring is now home to a clothing-optional resort.

This super steep hike ascends 2,000 feet in less than a mile.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

Air Force Academy Chapel made of 100 identical tetrahedrons works to inspire those of all religions.

A little-known hot spring haven right below the highway.

A legal loophole makes it possible to get away with murder within this 50-square-mile section of Yellowstone.

A mining town, now abandoned, was built in a canyon so narrow that the railroad ran right through the hotel lobby.

This Boeing KC-97 tanker is now a restaurant for aviation lovers.

Despite being one of the most photographed vistas in the Rockies these twin peaks are rightfully known as the "Deadly Bells."

When ecosystems collide in the arid Southwest.

The only natural lake in the world that drains into both the Atlantic and Pacific Oceans.

Native Americans built this circle of stones, which was used to predict astronomical events.

One man's ambition created this psychedelic log home.

This innocuous New Mexico storefront was once the secret jump-off spot for Manhattan Project scientists.

Wedding chapel's mysterious spiral staircase said to be miraculously constructed.

A giant milk bottle from the 1930s beckons drivers to this diner.

The decorations were inspired by an unlikely missing treasure.

The former home of the "Mother of Father's Day."

Protected from the elements, these Native American rock paintings have survived approximately 250 years.

This inanimate goat created by the "welding nun" has been helping to clean up the city of Spokane for more than 40 years.

This playground sculpture of an icon from the past is dedicated to the children of the future.

A haunted hot springs hotel that went from healing retreat to asylum before it was restored.