Been to Kennedy Space Center twice. Once before they locked it down, got the tour out to all the buildings, crawlers and pads. Again after 911 when I took my grandkids to DW, set aside Wednesday to go to the center. We didn't plan it but by a happy coincidence it happened to be the day they launched a space shuttle for an ISS resupply trip. There by noon and security lockdown until 7 pm that evening. Stood on the tower of the shuttle mockup at the visitors center and watched the launch with my family. Grandkids said that one event was the highlight of the trip. My 6 year old grandson dropped his toy shuttle off the tower and quipped "Huston we have a problem", totally cracked me up:-)