Frank Lloyd Wright's most iconic home dangles over a Pennsylvania waterfall.

The boulder on which Alexander Hamilton laid his head as he died can still be visited on the New Jersey coast.

A curious collection of oddities including a lock of Alexander Hamilton's hair and Harry Houdini's ouija board.

A sealed test tube said to hold Thomas Edison's dying breath was given to the inventor's friend and mentee, Henry Ford.

Alexander Milliner, a favorite of General Washington, is interred at Mt. Hope Cemetery along with 80 other Revolutionary War veterans.

A historic estate packed with George Washington's heirlooms, and its own nuclear bunker.

Where the U.S. government kept its actual treasure, before Fort Knox.

There's an old indoor swimming pool hidden directly underneath the White House Press Briefing Room.

Before Nixon, "watergate" meant canals.

They sort through millions of dollars worth of diplomatic gifts on behalf of the government.

This Virginia town has been famous for its fried chicken since the 19th century.

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

A small storefront museum explores the history and myth of West Virginia's famous urban legend.

A quiet, gothic haven nestled between Pittsburgh's Squirrel Hill and Point Breeze neighborhoods.

Behold the rickety wooden glory of the world's oldest operating roller coaster.

True to his word, George Swanson is buried in his white 1984 Corvette.

Bizarre Cavern.

A monument marks the location of the first successful steamboat demonstration.

A cave on the Maryland border where civilians took refuge during the bloodiest battle of the Civil War.

A macabre farm reserved part of its 222-acres for dead bodies, all in the name of science.

The universally beloved children's television figure is interred on a high hilltop in one of western Pennsylvania's oldest cemeteries.

In the parking lot of a fast food restaurant, a statue memorializing a prolific bull elephant.

The ruined remains of a coal mining ghost town are hidden within the woods.

The mortal remains of a Russian prince, priest and paranormal investigator who came to America in 1792.