Located within a historic park, the beacon is the oldest standing structure in Miami.

Speak to a companion on the other side of the room loud and clear through this architectural anomaly.

What was once a presidential estate is now an exotic menagerie and home to the Budweiser Clydesdales.

When it comes to handsignals (and colonialism) rock always beats scissors.

The most accurate timepiece in the world.

The winding route passes through an enclosed alleyway, two tunnels, and leads to the White House basement.

Light bulbs, scrap wood, and tinfoil comprise this homemade throne of the gods.

The house where John Wilkes Booth conspired with his co-conspirators.

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

A museum cafe showcases Native American dishes and indigenous ingredients from across the Western Hemisphere.

The 5.5-mile ring of steel posts around the Capitol Building is one of the largest (and most uniform) of its kind in the world.

This lovely picnic spot featuring thunderous jet landings is an aircraft spotter’s dream.

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

The famous abolitionist’s preserved estate is one of Washington's finest monuments to its great Black citizens.

The United States Capitol's former columns still stand.

Please don’t anchor your boat onto the Department of Defense’s underwater data cables.

A historic neighborhood church is reborn as a psychedelic arts collective.

A hidden gem on the lawn of the U.S. Capitol Building designed by landscape architect Frederick Law Olmsted.

Decades before the scandal, this staircase on the river was a literal "water gate."

A super-sized promotional trick that is now a D.C. landmark.

This unique museum cafeteria showcases the history and regional diversity of African American cuisine.

The oldest continuously operating fish market in the United States.

A gem in the small Missouri town where Winston Churchill coined the term "Iron Curtain" and effectively began the Cold War.

One of the Cemestos prefab homes built to secretly house thousands of Manhattan Project workers.