The only tennis court that falls under the jurisdiction of the central bank.

For 60 years, the academy had no permanent location until members voted Washington D.C. as its forever home.

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

The "Key of Keys" for Washington, D.C. and the apocryphal landing place for the military campaign that started George Washington's career is now at the bottom of a well.

They sort through millions of dollars worth of diplomatic gifts on behalf of the government.

The last remains of one of the oldest and largest oak trees in the United States calls this state park home.

These figures float and flutter in this fountain crafted by famed Swedish sculptor Carl Milles.

This monument traces the segregation line that inspired the first rural branch of the NAACP.

The former home of Dr. E.B. Henderson, also known as the "Father of Black Basketball."

A double agent hid information for the Soviet Union beneath this bridge for more than 20 years.

At Washington's Dulles Airport is a satellite museum (no pun intended) with three quarters of a million square feet of aircraft history.

Hell on Earth is actually a small town in Michigan where anyone can be mayor for a day.

The word "Watergate" will forever be associated with the infamous scandal in 1972, but this fountain is famous in its own right.

Commercial airplanes land mere feet over the heads of sunbathing beachgoers on this tiny island.

The city is full of whimsical portals to another world.

This beloved Baltimore spot features caged dolls, a giant Pez collection, and many, many mannequins.

Once part of a dam servicing an early 19th century grist mill, the tucked-way falls are a tricky-to-find urban oasis.

This lovely tree was a thank you gift from the man known as "Public Enemy No.1."

A former pillar of the Black community in Ellicott City.

A local farm's collection of unusual structures from a now defunct storybook amusement park.

This eye-catching sculpture of rural life seems a bit out of place at a suburban intersection in front of a car dealership.

This local mascot has been a presence in the area since the 1960s.

The last vestige of a once substantial orchard and farm in the suburbs of Northern Virginia.

These unusual rooms on wheels are holdovers from the 1960s.