"Wanna be a scientist?" – then visit this "rainy day" "treasure", set in a 1934 Fairmount building, which offers "world-class" "geeky fun" that "brings physics, astronomy and medicine to life"; so sit in the "great planetarium" or feel your pulse quicken as you walk through the "giant" replica of a "beating [human] heart" – just don't forget to "wear comfy shoes" as you'll need them to "dodge" the "busloads of children" on school days.