Parking garage where Bob Woodward met Watergate source "Deep Throat."

This unique historical monument features large concrete spheres designed to resemble fallen stars.

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

The rogue roots are gradually consuming some of the historic marble grave markers.

Though his role as the inventor of baseball may be up for debate, fans still festoon Doubleday's grave with baseballs.

In what is rumored to be an intentional act of spite, this memorial almost completely obscures the nearby grave of a senior officer.

A gift from Scotland to the United States in memory of the 270 lives lost when Pan Am Flight 103 exploded over Lockerbie due to a terrorist bombing.

Recorded as the first person buried in Arlington Cemetery.

The controversial urban planner who designed Washington, D.C., was buried in Maryland, and can presently be found in Virginia.

Soldiers were buried next to Lee's house in the center of Arlington Cemetery to dissuade the general from reclaiming his property after the war.

D.C. once had its own tiny rival to the New York Stock Exchange.

Scary metal statues adorn some of the signature buildings of Burlington, VT.

The sweetest graveyard in the world is filled with headstones for dearly de-pinted ice cream flavors.

A pair of black granite tails dive into a sea of grass in landlocked Vermont.

This sandstone gorge in New York State's Adirondack Mountains is home to waterfalls, flumes, and more.

A CT scan revealed the identity of this 3,000-year-old mummy that everyone erroneously thought was female.

The oldest farmer's market in America is so ancient it was approved by the King of England.

A statue commemorating a Polish dog who took his role as man's best friend very seriously.

A massive white oak tree provides a beautiful canopy near a suburban shopping center and stood before the signing of the Constitution.

A rare memorial paying homage to an altruistic woman from the 19th-century.

Even though some of the buildings date back to the Victorian era, this research institute is still involved in cutting-edge astronomy research.

In the days before house numbers, these colorful signs held clues about various buildings' purposes.

Hidden behind an industrial area, this is one of the very few such transporter bridges in existence.

This disused Cold War bunker has been restored to all of its early 60s glory.