The internal railway of one of the biggest steel plants in America has been transformed into a linear park with unique industrial views.

This elaborate towering structure was once famed for its revolutionary height.

The remains of a community that was forced to move for a dam that never materialized still rot in this Pennsylvania park.

The first American department store, and home to the largest operating musical instrument in the world.

A miniature baseball stadium honoring Johnny Rosenblatt Stadium, home of the College World Series from 1950-2010.

The helicopter that "Tricky Dick" absconded from the White House in on his last day in office.

The White House Situation Room was taken apart in 2006 and shipped to the Ronald Reagan Presidential Library.

A museum dedicated to restoring vintage aircraft, located at a working airport.

One of Hollywood’s favorite government buildings.

Concrete strongholds stand guard over the Golden Gate.

This California tree is the single source of the state's entire orange industry.

These structures were inspired by both Native American shelters as well as, strangely, an ice cream shop.

A water tower shaped like a giant coffee pot looms over a small Swedish village in Central California.

This stately structure has been abandoned for half a century.

This quirky UFO-shaped curiosity is often mistaken for the airport’s control tower.

The Route 66 institution that inspired Taco Bell also served as an important headquarters for Mexican-American social movements.

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

An historic and oft-filmed spot for musclebound iron pumpers on the Pacific coast.

An iconic location along the Los Angeles River where countless movie scenes are filmed.

Megachurch turned Catholic church comprised of 10,000 glass panes.

A giant donut stands as a popular symbol of Los Angeles iconography.

A sign at the end of the Santa Monica Pier marks the traditional end of the legendary American highway.

Mexican food and folk art.

This private residence was the template for one of the most beloved television homes of all time.