What is Fair Park, you ask? This is where the State Fair is held each year in Dallas. That's such a big deal for Dallasites that kids get a day off from school just to attend it! The rest of the year, however, Fair Park is still worth a visit.
Located just a few miles away from the major JFK attractions downtown, Fair Park is maintained as a place to explore Texas history with the kids. Many of the museums, such as the Natural History Museum and the Science Place, are interactive. Some of the attractions are free such as the Hall of State where you can see the statues of some famous Texans. Most of the museums charge a modest entry fee.
My suggestion? Pack a lunch for the kids and eat by the lake across from the Cotton Bowl Stadium. Your children will love walking on the Loch Ness like statue that extends into the water, looking at the fish and turtles while you relax in the shade of a tree. You could easily park your car and spend all day in this area walking from museum to museum. You can even take in a movie at the IMAX. The best part about Fair Park? The activities are fun, educational, and they won't break your budget.