Have you ever noticed the white grain silos in downtown Carrolton? Well there is a climbing gym inside! And it houses the world's tallest indoor climbing route. I've been going for over a month now and love it. The staff is really cool and the gym is unique to say the least. There are routes for all skill levels.
Check out the living social deal here: http://www.livingsocial.com/deals/488736-indoor-rock-climbing-passes