When my son was younger, a visit to the Carnegie Science Center was more like a mad dash though the exhibits. You can take your time to explore when it's an all adult excursion. The Carnegie Science Center has so much to absorb and stimulate new knowledge even for us older folks: Sky Watch, lectures, 21+ Nights (Day 217), the Rangos Giant Theater (Day 277) and traveling exhibits. Recently, my father and I climbed aboard during the Science Center’s train weekend.