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

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

The national park was once a plantation estate.

This church built atop a gas station promises to "equip you for the next stage in your life’s journey."

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

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

A derelict bit of transportation infrastructure hidden in the woods.

The little-known, 300-year history of the area includes former lives as a bustling tobacco port, parking lot, and industrial dump.

A building shaped like the Army Corps of Engineers logo, because why not?

Captain John Smith thought these cliffs were amazing in 1608 but sharks thought so 20 million years before him.

The stone marker that Mason and Dixon placed at the eastern end of the famous north-south border they surveyed.

This micro-nation may be some sort of prank, but its constitution sure seems official.

Lithuania's outdoor sculpture trail of wooden folk art.

An old hill fort covered in over 100,000 crosses is a symbol of Lithuanian nationalism and beliefs.

A memorial to the murdered Jews of Kaunas.

Two hundred tons of pioneer artifacts were painstakingly recovered from a shipwreck at the bottom of the Missouri River.

The trials and tribulations of marking Poe’s grave.

This fort down the Potomac from Washington, D.C. was once the only defensive fort protecting the capital.

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

America's first federal monument.

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

This stately building in Alexandria, Virginia was built by Freemasons to honor one of their most famous members.

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

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