Two well-preserved charcoal kilns survive in a remote part of eastern Nevada.

A hidden gem, named after a San Franciscan icon, offers spectacular views of the Pacific Ocean.

Beneath the southern end of the Golden Gate Bridge is the “Gibraltar of the West Coast,” a fort built to protect the San Francisco Bay from naval attack.

A tribute to the successful role of the Keflavik Naval Air Station in the defense of Iceland, United States and NATO Alliance.

This magnificent natural sandstone bridge is one of the largest in the world and is an iconic symbol for Lake Powell.

Mass grave of 50 unidentified French Soldiers who died at the Siege of Yorktown, 1781, that gave victory to the American Revolution.

This mesmerizing and surreal landscape features intricate patterns of white and red sandstone.

This lighthouse has been guiding shipping into the Golden Gate since before the American Civil War.

Red rock "fangs" jut out of the desert near the Extraterrestrial Highway.

A late-19th century diversion canal built by hand crosses Bryce Canyon National Park and is still in use.

A plaque on the base of this statue holds a bewitching design.

A geothermal paradise with bubbling mud pools and bright blue hot springs.

A former sanitarium where soldiers were sent to recover in the healing waters of hot springs.

The first bridge observation tower in the U.S. offers one of the best views of Maine.

This 19th century granite fortification is one of the most well preserved forts in New England.

Stone monument honoring a town founder has a witch-boot shaped stain and a curse to go with it.

A restored historic movie theater is the perfect place for a regional film archive.

An unsolved murder victim's grave which may or may not contain her body.

The second-oldest garden cemetery in the U.S. was also a college brainstorm spot of Stephen King.

Maine’s only official memorial to the Underground Railroad.

This Art Deco theater is the last remaining opera house in the “little Broadway of the North.”

New York City's smallest piece of private property.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

Elevated freight railway turned wildly successful urban park.