We need more places in town like this. It truly is a well designed and fun place to go. I've been here several times and still haven't seen everything there is to see. Not that it's so large or anything, it just has a lot of things to do packed in here.
A lot of interactive exhibits (good for kids and kids at heart alike), they relocated the Nevada State museum here recently - still haven't made it into that yet.
Very helpful staff. While there recently they had a bird show with some pretty cool falcons, hawks and owls..again very interactive with the audience participation and birds flying around etc, it was a lot of fun.
A small-ish trail system (that is actually free to enter) takes you around some of the old time springs area, water exhibits and 'wetlands' so to speak. And you really can't tell the US 95 freeway is a stones throw away...it's a nice respite from the hustle and bustle of the city.