A tribute to Ponce de Leon's supposed quest for eternal youth.

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

World War II bunker still standing on the New Jersey beach.

Down the road from where the Wright brothers lifted off is another flight tribute practically hidden from sight in the woods.

The Cadillac Ranch for monster truck aficionados.

This shifting North Carolina sand dune is an odd little desert surrounded by oceanic forest life.

One day a year it is legal to jump off of this astoundingly tall bridge that spans an Appalachian gorge.

This Delaware River bridge is emblazoned with a catty slogan from a more prosperous time.

The famous bell was secreted away and hidden in a church in Allentown during the British occupation of Philadelphia.

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

In which a local geological marvel becomes a quaint roadside attraction.

This steep cable railway has been hoisting passengers in the heart of Québec City for over a century.

A historic Montreal market that was the city's agricultural hub for over century.

The bank that helped fund the Mexican-American War and the purchase of Alaska met its downfall after helping Augusto Pinochet launder money.

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 seemingly out-of-place gas station by the Watergate hotel was once described as the most expensive gas station in the world.

While most wind tunnels test scale models, the "Cave of Winds" was large enough for actual airplanes.

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

Washington's iconic carousel has a nice piece of Civil Rights history.

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

Before Nixon, "watergate" meant canals.

A small triangle of DC grass is the final resting place of one of Sonny and Cher's songs.

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

The Byzantine, pre-Columbian, and medieval art at this stately mansion are some of the most under-appreciated collections in D.C.