A few weekends ago, Carl and I took Alex to the PDK Good Neighbor Day.
PDK is a small airport near where Hilary and I used to live. They do a full air show and have jumpys and the DeKalb Fire and Police and Military all come and let the kids climb in and on the equipment. Alex was in heaven!
He got to climb all over fire trucks, police motorcycles, military helicopters and watch the bomb robots... a little boy's heaven.
He even enjoyed the airshow, we watched from inside a hanger to keep cool and every time the airplanes would go in and out of view, he would shout "There they go!"
Here is a shot that shows how close we were to the planes as they taxied down the runway

Alex driving and climbing the fire trucks
Watching the robots
On the motorcycle
In the helicopter