WWII-era bunkers are hidden under the beaches of this picturesque park, which is still scattered with wartime watchtowers. .

This building at the south end of the boardwalk was once home to the U.S. Life-Saving Service and the U.S. Coast Guard before being rescued itself.

The land is home to swimming ponies and a legendary 18th-century treasure.

One of the best places to see feral Colonial Spanish Mustangs in the United States.

An underwater statue of Christ blesses the depths off Key Largo.

An obelisk commemorating Lincoln's role in connecting the coasts.

This once rural mansion now sits in the heart of the city.

This concert pavilion on the shore of the Great Salt Lake has been destroyed by fire, water, and disinterest but keeps coming back.

The only road through the heart of Glacier National Park.

Spectacular views await visitors to this lake.

An architect's childhood fantasy treehouse made real.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

A beautiful geyser under environmental threat.

This Yellowstone geyser may not shoot as high as the nearby Old Faithful, but it erupts for considerably longer.

Thousands of pieces of art have been carved into the rock at the site of an ancient volcanic eruption.

A small metropolis of Pueblo cave dwellings have been carved right into the hillside of this national monument.

Once a dining hall for boarding school students, this lodge was a popular haunt for nuclear physicists working on the Manhattan Project.

This giant pocket watch is the third iteration of a local landmark that has been standing just off the Santa Fe Plaza for over 100 years.

This southwest-styled home in Santa Fe claims to be the oldest house in America thanks to an ancient bit of foundation.

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

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

The oldest continuously occupied public building in the United States.

This sparsely populated town offers a look back in time.

Home to New Mexico's longest bar, this watering hole also has a mining museum and a haunted history.