This icon of the Atomic Age now lays dormant.

This permanent exhibition celebrates the finest of our heartless automatons both real and fictional.

The last remnants of Fort Pitt also hold the distinction of being the oldest structure west of the Allegheny Mountains.

Meet your friends, marry your true love, or tell your enemies to kiss your butt under this historic Pittsburgh timepiece.

This extraordinary Depression-era expenditure was modeled after a postcard of a Mediterranean hotel.

These tourist trap caverns are said to be the former home of a legendary Pennsylvania Hermit.

On the outskirts of Pennsylvania’s capital city, a reminder of the worst accident in U.S. commercial nuclear power plant history.

This museum pays tribute to the largest group in the Iroquois Confederacy.

At the birthplace of American railroading, a world-class collection of historic trains.

America's first nuclear-powered merchant ship is now a time warp to the atomic age.

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

This staircase in a lush tropical grotto was built by enslaved laborers and renamed to honor Queen Victoria's role in ending slavery in the British Empire.

The only Native American intaglio left in Wisconsin.

Pittsburgh’s largest and most detailed model train display began as one WWI veteran’s hobby.

Visit a section of the historic wall that once divided Berlin in the heart of Columbus, Ohio.

A rare tour of a commercial jet assembly plant, held inside one of the largest buildings in the world.

This rowhouse doubles as one of the most photographed spots in the nation's capital.

A terrace reminiscent of Rome's Spanish Steps is tucked away in a little park in Washington, D.C.

Once a slice of Cold War-era military history, this museum is finding its future in the stars.

This former hub for crafty philosophers was founded by a writer who died aboard the infamous RMS Lusitania.

An old vending machine serves up unpredictable beverages from its seemingly magical insides.

This vintage short line in Amish country runs passenger steam train excursions and still hauls freight.

In Oklahoma City's Bricktown, there's a street that don't use jelly.

If you don't look closely, you might mistake this sculpture for just another passenger waiting at the airport.