Marvel at this turn-of-the-century masterpiece that has been turned into a rather stately supermarket.

Cleveland's giant "free" stamp is a nod to the Civil War, but was misinterpreted for years.

This statue of the "father of television" stands prominently in the United States Capitol.

"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!”

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

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

Rumor has it the uncarved lump behind the three famous suffragists is reserved for the first woman president.

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

The word "Watergate" will forever be associated with the infamous scandal in 1972, but this fountain is famous in its own right.

An 18th-century townhouse that once hosted guests of the president.

The only Leonardo Da Vinci painting in the Western Hemisphere.

The grand marble structure next to the White House is Andrew Carnegie's temple to Pan-American diplomacy.

The innocent intentions of this monument are somewhat lost in the sculpture's muscled imagery.

This taxidermy horse was a Civil War hero.

Before Metro, Washington had a robust streetcar network—and you see the remains of this infrastructure if you know where to look.

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

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

Sit where JFK proposed to Jackie or where Nixon dined on meatloaf at this storied pub.

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

The most decorated dog of World War I is preserved in the Smithsonian.

The site of the climactic scene from the classic horror film is now a historic landmark.

A tribute to the pop culture icon overlooks this Washington D.C. intersection.

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

One of the oldest active carousels in the country—but it might be missed by all but the keenest-eyed boardwalk strollers.