Dinosaur World is located in Glen Rose, TX, near Dinosaur Valley State Park (but completely separate).  You wander through a paved trail and see over 100 life-size dinosaurs.

In addition to the walking trail, there are a couple of activities for kids.  They have large sand pit where you can uncover dinosaur bones by brushing/digging in the sand.  There was also a Fossil Dig where you can pan for fossils. The kids pick their 3 favorite to take home.  Walking through the park and doing the fossil dig took less than 2 hours.  There are several other parks in the area that we plan to visit next time we are in Glen Rose, TX.