McMinnville's Church on the Hill holds a huge play structure open to the public for free. It's called Scotty's Playhouse and is the largest play structure around. It has multiple slides, endless tubes (adult accessible in a pinch), towers, rope walkway, and obstacle courses.
There is a padded toddler area for little ones. Plastic houses, a tree, a rock climb, and slides make up this area. There is plenty of seating for parents and the children have loads of fun.
Scotty's Playhouse is located in McMinnville, about 30 minutes from Dallas. Follow Hwy 99 all the way to McMinnville to downtown. Turn left on 2nd street at the fire station. Go straight for a few miles and turn right on Hill Rd at the stop sign. The play structure is about 2 blocks up on the right. Look for "Church on the Hill" and a large windowed building that holds the Playhouse.
Hours:
(Website hours are wrong)
Monday 9am - 11am
Tuesday 3pm - 5pm
Wednesday 9am - 11am
Thursday 3pm - 5pm
Friday 9am - 11am
Saturday 10am - 2pm