This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

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

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

The most accurate timepiece in the world.

A painfully obvious spy house sits right across the street from the Russian Embassy.

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

The house where John Wilkes Booth conspired with his co-conspirators.

A cavernous three-story, 43,800-square-foot basement that was forgotten about for 60 years.

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

The sci-fi villain is a little-known inhabitant of the U.S. capital's largest cathedral.

The World's First 24 Hour Coin-Operated Art Gallery!! Plastic, Styrofoam, and Elvis--If you can't get rid of it, you might as well worship it!!

No two pieces are exactly the same at Portland's hippo-themed hardware store.

A logging-themed roadside restaurant surrounded by museum-quality machinery and artifacts from the industry's heyday.

The only Native American museum along the Oregon Trail, run by the peoples who have lived on the land for generations.

A public fountain that spouts "health water" from a nearby spring.

Make it an offering.

A sculpture of a salmon swimming through a brick building.

A stunning landscape of bunkers that once stored chemical weapons.

According to legend, you must remain completely silent while passing this man-made mound or suffer the consequences.

Home of Howard Hughes' Spruce Goose.

This sandstone mansion was the home of two of Oregon's most important pioneers.

Mountain known by the Tillamook Tribe as "the place of the supreme deity."

Home to the only outdoor municipal elevator in the United States.

A vertically floating hemlock controls the waves and weather at Crater Lake.