An oft-overlooked, magically musical monolith that stands majestically between Arlington Cemetery and the Iwo Jima Memorial.

The national park was once a plantation estate.

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

An overlooked memorial honoring the local Washington residents who died in World War I.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

The 72-foot giant escaped confinement in a large patch of mulch only to be reburied in the sandy shores of the Potomac River.

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

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

Giant busts of 42 U.S. presidents sit, crumbling in a field in Virginia.

Scenic mount trashmore, Virginia Beach's most curious waterfront still has a couple of secrets.

The land is home to swimming ponies and a legendary 18th-century treasure.

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

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

The only surviving 19th-century water-powered mill found in the Washington, D.C. area.

Where pardoned turkeys once spent their all-too-brief final days.

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

An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

This monument is dedicated to those lost on June 6, 1944, in the town with that day’s highest per-capita casualty rate.

A 30-foot-tall cement chair pays tribute to a historic design and a local industry.

A six-foot pair of socks hangs from a drawer of the world's largest bureau.

This roadside attraction has been serving out its fair share of hearty folklore and chaos since 1858.

This metal disk commemorates the birth of a historic American holiday.

This bright yellow relic is the final survivor of a short burst of seashell-shaped petrol pumps.