It looks big but it's very small inside.
Admission is $5.
It took me about 30-40 minutes to finish looking at everything.
Some things are neat.
One of the exhibits I did not like... it had a creepy feel to it. Another exhibit was interactive so that was cool.
There was also an exhibit outside but you could easily miss that if you weren't paying attention.
There's also free wi-fi. The password is located in the front where you purchased.
BOTTOM LINE: This place is just okay. If you're bored and in Scottsdale and you have an hour to spare, come and check it out. I don't think it's anything you need to get too excited about though.