Another nod from me for the aquarium. As your typical, technologically-inclined robotics nerd, I was less than excited about seeing a bunch of wildlife... it really is a sight to behold. Even if you hate fish, the engineering that went into some of the exhibits is phenomenal. Take a look at this
shark tank and imagine the massive pressure exerted on that clear wall, and you can go up and be inches away. Engineering aside, where else can you get that close to a full grown shark? Incredible.