A clone of a cloned tree that was so important it allegedly had its own guards.

There’s a special club house at the top for the bell ringers.

An overlooked oasis of quiet on the grounds of Washington's monumental basilica.

A little marble compass above George Washington's (empty) tomb in the Capitol marks where D.C.'s four quadrants intersect.

Daily lunch spot for many of Washington, D.C.'s cab drivers.

When it opened during the final years of the embargo, all the drinks and cigars were free.

The oldest continuously operating fish market in the United States.

A much-maligned monument to teetotalism.

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

You could be standing at the site of one of D.C.'s most fatal tragedies and not even know it.

There's a crumbling old mansion inside the Smithsonian National Zoo.

People escaping slavery may have hidden inside a corpse vault.

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

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

Rumor has it the uncarved lump behind the three famous suffragists is reserved for the first woman president.

The famous abolitionist’s preserved estate is one of Washington's finest monuments to its great Black citizens.

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

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

Four bald cypress trees in Lafayette Square, across from the White House, mark the southern edge of a 100,000 year old cypress swamp.

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

Franciscan monks created a facsimile of the Holy Land for North Americans who couldn’t afford the trip overseas.

A haunting tribute to pioneering photographer Clover Adams.

The most decorated dog of World War I is preserved in the Smithsonian.

A nostalgic bibliographic gem.