LEGOLAND Discovery Center Kansas City is particularly recommended for kids ages 3-10. Visits typically range from two to four hours in length, and kids must be accompanied by adults. Located in Kansas City’s Crown Center, parking is available in covered garages (free with validation.) Admission costs $18 and is free for kids under 2. LEGOLANDKansas City is open daily from 10am. There are also combo tickets with the nearby Sea Life park available.