Ashley & Brandon in front of the Air & Space Museum at Dulles Airport.

The air-traffic control tower.

Posing out front for a picture.

Walking in.

The kids with Pop-Pop looking at the view from up in the control tower.

Looking out toward Dulles Airport.

Entering the main hangar of the museum.

A view of the "Black Hawk" from up above.

An old WWII fighter plane hanging from the ceiling.

An Apache helicopter.

Ashley & Brandon in front of the space shuttle, Enterprise.

A view of the shuttle from the side.

Another side view.

One of the many missiles on display.

The Trident missile.

The Mars land rover.

A closer view.

Another view of the space shuttle.

Heading toward the Enola Gay exhibit.

The Enola Gay.

A few, different helicopters.

Air France's Concorde.

One of the first Pan Am commercial airplanes.

Another view of the Enola Gay.

An old, German fighter plane.

Various jets.

An early airplane model.

Another early model.

WWI aircraft.

Pop-Pop & Ashley waiting for the simulator ride.

"We're next!"

Heading in for a simulated fighter jet flight.