The only remaining historic maritime signal station in the United States.

These whimsical works of art tell the story of the city's past and present.

The former site of an all-but-forgotten colonial landmark is now remembered by an often overlooked bas relief.

The oldest Italian café in Boston, this spot also serves as a veritable museum of vintage coffee ephemera.

"Mock all and sundry things, but leave the saints alone."

An interesting decoration on this historic site, this weathervane comes with as many legends as it does questions.

Commemorating the spot where the famous scientist fed his pigeons.

Stunningly detailed mosaics in a New York subway station bring life to the Weimaraners of artist William Wegman's work—and to thousands of commutes.

The "lovely red Vega" of the legendary record-settling pilot.

The actual model from the original "Star Trek" series is now on display at the National Air and Space Museum.

Art deco landmark on the outskirts of Washington, D.C.

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

The United States Capitol's former columns still stand.

This poor little statue is the most vandalized memorial in Washington.

The first memorial dedicated solely to the Black troops who fought for the Union.

A gorgeous mural outside a beloved D.C. restaurant pays homage to famous Black Americans.

This unacceptably tall building was the real reason for Washington, D.C.'s skyscraper ban.

Obscure Freemasons still live in D.C.’s largest private residence.

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

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

The institution is sitting on a goldmine of 21,000 paints, varnishes, pigments, and primers preserved for posterity.

The first purpose-built art gallery in the United States is once again open as a center of craft arts.

A rotating cast of guys and dolls in front of a Washington, D.C. building.