OK, that's cool.
Peter, have you ever been to the NASA Center in Clear Lake, south of Houston, Texas. NASA has made a neat family park there, and one of the sites is a Lego center, where they not only have life-size Lego displays of a lunar rover, shuttle, and lunar lander, among other items, they have a booth where children of all ages can use an infinite supply of Legos to build whatever they might dream up. The last time we were there as a family, my son was home from grad school and he and his then 9-year-old cousin, Lucas, spent several hours building stuff there. I don't know which of them had more fun.