Address One Reliant Park, Houston, TX 77054 Map, Tel 832 667 1080 Call, Website
There are animals and displays that are good for kids of all ages as well as adults. My 13 month old son LOVED the bee keepers' display, as well as the petting zoo.
Several of the Livestock show activities are "hands on," which is great when your child can't seem to keep his hands off of anything!
You have to plan ahead though, as the rodeo is seasonal.