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

This mighty white oak in Bethesda survived both the American Revolution and the construction of Washington D.C.'s metro red line.

This grisly headstone doesn’t seem to be resting in peace.

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

The wooded estate of the Forest Service employee responsible for D.C.’s cherry blossom trees.

One of the first Second Empire-style buildings constructed in North America.

This historic building is now home to the Public Access Corporation for the District of Columbia.

Home to two notable early-20th-century Black educators, Lucy Slowe and Mary Burrill.

A memorial to a shareholder activist feared by CEOs around the United States.

The headquarters of the Audubon Naturalist Society is a small slice of heaven for nature lovers.

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

Brain collection and database that narrows the gap between man and animal.

An astounding collection of medical specimens, including bits of President Lincoln.

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

The rooster who crossed the road lives on forever in Takoma Park, Maryland.

Live data is transmitted from the Atlantic coast to instantly recreate the ocean waves in this fountain at the NOAA headquarters.

A benevolent, 16-foot-tall river dragon lives on a suburban lawn.

Built in 1945, this historic train station has a new lease on life with its baggage area serving as an event space.

A small 19th-century graveyard tucked away in the middle of a suburban neighborhood.

A tribute to the beloved, kind-hearted "homeless mayor" of Silver Spring.

Dogs, cats, horses, monkeys, frogs, and fish are laid to rest at the second-oldest pet cemetery in the U.S.

The longest escalator in the Western Hemisphere takes over three minutes to ride down.

George Washington once stopped by this house for dinner.

Walk a trail through a historic Quaker town that outlawed slavery in 1777 and was a major waypoint on the Underground Railroad.