I came here for Exploratorium After Dark with some coworkers. For $15, this is quite the experience! The space is large and there are quite a few things to check out, interact with, and learn about. It was kind of like a maze...so many things to look at! It got pretty crowded around 8pm. There's easy access to Pier 15 with Bart off of Market Street a couple of blocks away and there are several MUNI buses in the area. I wouldn't recommend driving if you're here for the After Dark event (with beers and cocktails going throughout the night).Overall a fun place to hang out with friends or even bring the family to learn something!