Have you ever seen the Texas Dinosaurs? I know my kids have seen them lots of times at the Witte Museum. The displays keep changing and updating with new information, animatronics and even a Tyrannosaurus Rex.
You can dig up a fossil remake of a Texas Dinosaur that had feathers and get close to one dinosaur as big as a plane. Right now you can visit for free on Tuesdays with no admission costs. If you want to see their special exhibition space a fee will apply to those wanting to visit that though.
The museum is located at 3801 Broadway St, downtown.