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

Soldiers were buried next to Lee's house in the center of Arlington Cemetery to dissuade the general from reclaiming his property after the war.

The FBI's urban training course may have the highest fake crime rate in the world.

Located at the former Lorton Prison the Lucy Burns Museum tells the story of the 91 year history of the prison including the dark chapter of its involvement in the women's suffrage movement.

This sprawling museum holds one man's giant collection of real tanks.

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

This museum sits on the site of a decommissioned military communications base.

An innovative attempt to break a siege in the American Civil War still scars the earth today.

Collecting 700 years of mechanical death-dealing, the NRA's sprawling gun museum is a revealing testament to the American obsession with armament.

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

The resting place of a Civil War celebrity's amputated limb.

This once-palatial plantation may have been the site where a draft of the Declaration of Independence was written.

A secretive collection featuring objects that were designed specifically for U.S. intelligence operations.

An abandoned World War II bunker is part of a chain that runs throughout Washington.

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

An annual celebration of the infamous, unsolved skyjacking.

42nd story Pyramid shaped penthouse tops Seattle's oldest skyscraper.

An abandoned network of military bunkers and tunnels open for anyone willing to descend into the darkness.

The highest point in Washington state is a volcano covered in glaciers.

The strange phenomenon causing gravity to "work backwards" on this hill has been blamed on the paranormal.

Shoreline strewn with the remains of ghostly fallen trees.

A surreal landscape where fanged rocks rise from the ground and the ocean feels like a great mystery.

An obscure waterfall that looks like something out of a fantasy novel.

An extraordinary mixture of natural beauty and man-made phenomena.