An oft-overlooked, magically musical monolith that stands majestically between Arlington Cemetery and the Iwo Jima Memorial.

The only remaining African American schoolhouse in northern Virginia is now a museum dedicated to formerly enslaved people.

The walls of America's oldest masonry fort famously "swallowed" cannonballs.

The preamble to the U.S. Constitution written entirely from vanity license plates hangs in the Smithsonian museum.

A half-size replica of the World Trade Center towers above Tulsa.

Overlooked by many, the two famous Scottish warriors guard the main gate of Edinburgh Castle.

Proto-CIA agents trained with grenades in the sand traps and fired machine guns from the fairways.

Perhaps the most scandalous statue of America's first president.

The oddly shaped, steam-spewing building is now an art studio and gallery.

Architecture lovers won’t stop touching the National Gallery's 19.5 degree marble prow.

A muscular Art Deco monument represents the struggle between regulators and unbridled markets.

It was once the base for a series of domestic terror attacks.

This unique historical monument features large concrete spheres designed to resemble fallen stars.

This church built atop a gas station promises to "equip you for the next stage in your life’s journey."

A larger-than-life monument to the overlooked women who braved Western expansion and broke down societal barriers.

Fragments of architectural wonders from around the globe are embedded in the newspaper building's walls.

This rare triple-jurisdiction drawbridge passes through Virginia, Maryland, and Washington, D.C.

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

This sandwich shop has a century-old elevator behind a sheet of plexiglass.

The fifth tallest statue in the United States is a shirtless monument to the oil worker.

The romance of early commercial flight still fills this Art Deco destination.

Fittingly, America's museum of architecture is itself a magnificently designed old building.

The future of roadside attractions is this sci-fi soda mecca that is home to a 66-foot tall neon pop bottle.

Look closely and you’ll notice that the color changes a third of the way up the tower.