NOT JUST INFLATABLES. Wonderwild is the brainchild of local Houston moms who wanted a safe and clean environment for children to play and party in. A birthday party facility, education center, and indoor playground, Wonderwild has a 4300+ sq. ft. play area with equipment that encourages infants up to children 8 years old to physically and mentally challenge themselves in order to build strong muscles, creativity, and confidence.