The final resting place of two (or three) presidents, one vampire, and 18,000 Confederate soldiers.

Exact replica of the ancient monument, but much, much lighter.

An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

Edgar Allan Poe's old dorm is now a shrine to the author's legacy.

A secretive collection featuring objects that were designed specifically for U.S. intelligence operations.

From a neon Rapunzel to a bike traffic meter to a street fair color scheme, the most opened drawbridge in the US is a veritable art gallery.

This popular bar has been blurring the line between normal and edgy for more than 75 years.

An ice cream parlor chain that caters to vegans and pinball fans equally.

A colorful architectural gem in Seattle's uniquely modern Central Library.

Pick up all of the cosmic knick-knacks under the sun or take a creative writing course, all offered in this novelty storefront.

Seattle's own bad art museum located inside Cafe Racer.

A memorial to a shareholder activist feared by CEOs around the United States.

This grisly headstone doesn’t seem to be resting in peace.

‘Bush the old fire dog died of poison July 5th, 1869. RIP.’

A small token of gratitude from freezing cold journalists who were given a warm haven while covering JFK's inauguration.

During Prohibition, the U.S. Congress had an "official" bootlegger, with his own Capitol Hill office.

One of the most influential presidents in U.S. history wanted only this plain, elegant monument as his lasting memorial.

Behind an abandoned storefront is an example of pioneering 1930s gas station architecture.

A building shaped like the Army Corps of Engineers logo, because why not?

The early data processor factory founded in Washington for the 1890 U.S. Census went on to become IBM.

Before founding the American Red Cross, Clara Barton had a tremendous humanitarian impact by locating thousands of missing soldiers.

The fountains of the U.S. Navy Memorial are annually salted with water from the Seven Seas as part of a nautical ritual.

When it comes to handsignals (and colonialism) rock always beats scissors.

A diminutive plaque recalls the treetop sniper who almost killed Abe Lincoln.