This is definitely one of St Louis has stops, grea...

This is definitely one of St Louis has stops, great for adults and children. Everything is Hands-On and very educational. Free to get in, theater and Planetarium have a ticket price. If you park at the north entrance, the parking is free. You get the walk across Highway 64 / 40 and see the cars below. Plan on spending at least 2 hours to see the entire Science Center. If you need to buy a snack, it's a bit pricey just like the St Louis Zoo.