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

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

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

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

There just so happens to be a court even higher than the U.S Supreme Court: a basketball court in the building itself.

"Congress may voluntarily remain in session throughout the summer, in order that our Congressmen may be protected from the intolerable discomforts and dangers of the ordinary outdoor weather!”

Before Nixon, "watergate" meant canals.

A winding path built in secret on the edge of the continent.

This abandoned NASA launch site is now a memorial to a trio of astronauts who were killed there.

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

This isn't your average roadway—it's actually a National Park and a transportation pioneer.

The graveyard holding the remains of George Washington's slaves was forgotten for nearly 200 years.

Perhaps the world's only gas station inspired by a political scandal.

This famous bridge twisted itself into oblivion, but not for the reason you might think.

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

A little marble compass above George Washington's (empty) tomb in the Capitol marks where D.C.'s four quadrants intersect.

Avoid gangster interaction while window-shopping.

An artist's cute bronze subway sculptures belie his violent artistic past.

Soldiers were buried next to Lee's house in the center of Arlington Cemetery to dissuade the general from reclaiming his property after the war.

Tacoma’s 25-foot coffee pot music spot has served up over 80 years of concrete kitsch.

42nd story Pyramid shaped penthouse tops Seattle's oldest skyscraper.

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

The rogue roots are gradually consuming some of the historic marble grave markers.

The "lovely red Vega" of the legendary record-settling pilot.