The final resting place of the tragic king and queen of the Jazz Age is tucked away in a small Maryland graveyard.

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

An original apothecary from 1792.

The bridge's highly-contested plaque (once again) honors Confederate President Jefferson Davis.

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

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

Giant acorn-shaped 19th century gazebo from which suburban Washingtonians gazed upon the original "silver" spring.

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

A super-sized promotional trick that is now a D.C. landmark.

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

This isn't your average roadway—it's actually a National Park and a transportation pioneer.

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

This lovely picnic spot featuring thunderous jet landings is an aircraft spotter’s dream.

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

The country's oldest continually-operated mini golf course lies hidden in plain sight, eclipsed by one of D.C.'s most popular tourist attractions.

The 5.5-mile ring of steel posts around the Capitol Building is one of the largest (and most uniform) of its kind in the world.

This lovely pocket park is one of the most under appreciated in D.C.

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

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

The oldest continuously operating fish market in the United States.

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

While most wind tunnels test scale models, the "Cave of Winds" was large enough for actual airplanes.

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

Architecture lovers won’t stop touching the National Gallery's 19.5 degree marble prow.