Once the site of a Native American harvest festival, this humble clearing later played an invaluable role in the birth of jazz.

Northern Virginia’s iconic Vietnamese shopping center.

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

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

One of the three perfect vellum copies of this historic book known to exist is on display in a specially-designed case.

At 207 feet, one of the world's longest continuous escalators.

Members of Congress have traveled between the buildings on Capitol Hill for a century hidden from tourists, press, and storm clouds.

The national park was once a plantation estate.

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

The beloved statue at the National Academy of Sciences is oh so inviting to sit on.

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

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.

America's most famous piece of self-built architecture.

A memorial dedicated to the victims of the Columbine High School shootings.

The sweetest graveyard in the world is filled with headstones for dearly de-pinted ice cream flavors.

An imposing statue of the first prime minister of Antigua and Barbuda stands in the middle of a traffic intersection.

Striking, enormous gold-plated sculpture of Buddha installed in the 19th century.

Bangkok celebrated its shifting monarchy with a militaristic homage to democracy.

The Midwestern United States' tribute to Michelangelo is a foam statue sprayed with gaudy gold paint.

Famous for its bio-luminescent inhabitants, known as "dismalites."

Underneath this water pump, Annie Sullivan helped Keller speak her first words.

You'll need cowboy boots to trek to this old-fashioned saloon nestled in a giant natural cave.

A monument to the man who almost killed Hitler.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.