One critic described it as "middle Mussolini, early Ramses, and late Neiman-Marcus." Another called it an architectural "natural disaster."

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

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

The walls of the iconic dome are hollow and have a secret stairway.

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

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.

A nostalgic bibliographic gem.

A 1,100-ton train fell through the floor in 1953. Workers got it patched up in just 72 hours.

Largest Roman Catholic church in North America.

Home of the physician who set the leg of John Wilkes Booth after the Lincoln assassination.

This bug-eyed water wheel uses the power of the Sun to clean up Baltimore Harbor.

The site where Poe "in great distress, and ... in need of immediate assistance" likely died.

The taxidermy remains of the most popular pony in children's literature.

The land is home to swimming ponies and a legendary 18th-century treasure.

The stone marker that Mason and Dixon placed at the eastern end of the famous north-south border they surveyed.

Vintage cars and motorcycles race for glory in a throwback motorsport celebration on the Jersey shore.

A statue of the English poet for whom this Delaware town is named is ritually dressed in seasonally appropriate clothing.

The Dover International Speedway is home to a towering, concrete-skinned, racecar-hungry behemoth.

A grotesque Fiji merman dwells within this traditional Dutch-style building.

Museum houses an impressive display of the origin and artistry from the now-quaint invention's history.

WWII-era bunkers are hidden under the beaches of this picturesque park, which is still scattered with wartime watchtowers. .

The historic home still shows the scars from a little run-in with the British in 1813.

A wrecked ship dating back to the American Revolution was only recently discovered off the Delaware coast.

What began as an art installation is now the private drinkhaüs for a brewery's employees.