This junkyard made over as a theme park is the "Most Alaskan place in Alaska."

This house is a mosaic of tiled artwork sourced from local artists.

This forgotten boat elevator was an engineering marvel in its heyday.

Through the decades, Black music stars have performed at this historic hub for music and the arts.

The Byzantine, pre-Columbian, and medieval art at this stately mansion are some of the most under-appreciated collections in D.C.

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

A historic estate packed with George Washington's heirlooms, and its own nuclear bunker.

Fittingly, America's museum of architecture is itself a magnificently designed old building.

A lovely aquatic park built by a one-armed Civil War veteran who made a fortune from lotuses.

A historic neighborhood church is reborn as a psychedelic arts collective.

A tiny piece of the Moon is embedded in this stained glass masterpiece.

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

Home to items never before seen by the public.

The United States Capitol's former columns still stand.

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

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

The oldest continuously operating fish market in the United States.

This stunning blue and gold room changed cities twice before becoming part of the Smithsonian.