A grove of colossal man-made flowers built to collect the sun's rays.

A 90-year-old underground water reservoir offers a more industrial kind of tranquility.

A 24-hour vending machine restocked daily with homemade full-sized pecan pies.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

An overgrown garden stands as a grim marker of an unrealized dream.

This little brick tunnel built by Confederate forces was used to conduct surprise attacks on the railroad.

Right next to departures—how convenient!

Affectionately known as "Lord Bot," this historic statue has a cult social media following and rightly claims to be “the most metal inhabitant of the Wren Yard.”

The hide of Stonewall Jackson's equine sidekick is on display not far from where the ashes of his bones are buried.

This campus chapel is Robert E. Lee's final resting place and a topic of debate about the legacy of the Civil War.

A whopping 14,000 copper coins cover this miniature fighter jet.

The airport was once a Civil War battleground, and the earthwork defenses can still be seen today.

The iconic statue was moved to a new spot overlooking the James river after several years as a mascot for the local baseball team.

Inspired by a foil-wrapped potato, (seriously) the Markel Building has been deemed one of the 10 ugliest buildings in the world.

The final resting place of two (or three) presidents, one vampire, and 18,000 Confederate soldiers.

This 29-ton granite ball spins around at the slightest touch thanks to a scientific phenomenon.

Two insane asylum bodies embalmed by an amateur.

Two gems of Beaux Arts architecture that have been sitting vacant for years.

The highest point in Maryland is only accessible by hiking through another state.

The story behind the mysterious symbol painted in front of the historic university's famous Rotunda.

This former fire tower found new life as a communications hub complete with a scenic overlook.

This bug-eyed water wheel uses the power of the Sun to clean up Baltimore Harbor.

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

The tallest The Church of Jesus Christ of Latter-day Saints temple in the world soars above the Beltway.