Walk through the history of American pop culture.

The remnants of a wooden-hulled fleet built and abandoned in WWI, now home to a thriving ecosystem.

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

This rare triple-jurisdiction drawbridge passes through Virginia, Maryland, and Washington, D.C.

Once home to seven different roller coasters, Glen Echo has undergone many transformations since its founding in 1891.

A former major munitions plant that has been converted into a sprawling art space.

One of the dwarven trees dates back to 1625 and survived the Hiroshima bombing.

The privately owned cemetery that holds room for Washington's finest when they step down from life.

The romance of early commercial flight still fills this Art Deco destination.

Bar full of oddities, specimens, artifacts and homages to the great dime museums of the past.

This lonely waterfront memorial to the men of the Titanic was erected by the "Women of America."

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

A historic arena where the Beatles played their first concert in the U.S.

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

The oldest continuously operating fish market in the United States.

The only National Monument ever to go missing for nearly 50 years then resurface in a dump.

Washington's iconic carousel has a nice piece of Civil Rights history.

A much-maligned monument to teetotalism.

Go take a picture with the inventor of the daguerreotype photographic process.

Home to items never before seen by the public.

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

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

The unique traffic pattern named for an influential urban planner is also known as the Pedestrian Scramble.

Legend has it that President Grant’s frequent drinking in the lobby gave rise to the term “lobbyist.”