A sculpture of the famous photograph stands on San Diego's "Greatest Generation Walk."

One of the few remaining carousels built by master amusement park carver Charles I.D. Looff.

An ivy-covered arch bridge dedicated to Tejano music singer and legend Rosita Fernandez.

This opulent hotel has been visited by Spider-Man, Charlie's Angels, and the Ghostbusters.

Scores of vintage street lamps shine along L.A.’s Miracle Mile.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

Disks are rolled out onto the south lawn to absorb the impact of Marine One's wheels like giant coffee coasters.

A hidden passageway now marks the site of an assassination attempt on Ronald Reagan that some say broke a 140-year-old curse.

An overlooked memorial honoring the local Washington residents who died in World War I.

A derelict bit of infrastructure from the canal that once ran through D.C. is landlocked in the heart of the city.

A portal into the bricked up canal that runs through the heart of Washington D.C.

One of the most influential presidents in U.S. history wanted only this plain, elegant monument as his lasting memorial.

The little-known, 300-year history of the area includes former lives as a bustling tobacco port, parking lot, and industrial dump.

The oldest building in the District of Columbia was preserved because of a mistaken connection to George Washington.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

There's an old indoor swimming pool hidden directly underneath the White House Press Briefing Room.

The unique traffic pattern named for an influential urban planner is also known as the Pedestrian Scramble.

A much-maligned monument to teetotalism.

A haunting tribute to pioneering photographer Clover Adams.

The site of the climactic scene from the classic horror film is now a historic landmark.

A 60-room castle constructed by a horse-racing heir.

This lighthouse was witness to the end of WWII hostilities and now collects creepy cairns.

Mysterious stone tower featured in many alternative histories of the New World.

This Rhode Island mansion was a stand-in for the exteriors of Collinwood in the original "Dark Shadows" series.