This giant temperature attraction created some giant electric bills.

Haunting and beautiful trees, doomed to die.

L. Frank Baum wrote part of the "Wizard of Oz" series in this wooden Victorian beach resort.

San Diego's most historic and haunted home.

Standing in a state of "arrested decay," this ghost town allows for a detailed peek into Gold Rush life in an unusually harsh climate.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

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

Recorded as the first person buried in Arlington Cemetery.

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

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

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

This cannonball stands as a reminder of the final act of a fleeting governor amidst a revolution.

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

The graveyard holding the remains of George Washington's slaves was forgotten for nearly 200 years.

Thomas Jefferson's estate is home to hundreds of varieties of historic fruits and vegetables.

This museum explores the grim reality of life in the earliest British colonies in America.

The only place for a truly presidential dram.

The Virginia farm where John Wilkes Booth met his grisly end is now largely forgotten.

At 207 feet, one of the world's longest continuous escalators.

This old-fashioned carhop restaurant gave the world the waffle cone.

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