Washington DC has three fantastic indoor playgrounds where you can enjoy parent-child games with your toddler or early childhood education classes with your pre-schooler. Each one has its own unique charm, so pick the one that suits you best and go!
1.Little Ivies DC
Address: 4818 MacArthur Blvd NW, Washington, DC 20007
Website:https://www.littleiviesdc.com/
Little Ivies DC is a play center focused on children's early development. Preschoolers can join the center's early education courses with their parents. Under the guidance of teachers, children will gradually develop their independence. The courses are clearly structured, helping kids get used to rules and group life while playing, so they can be well-prepared for school in advance. Besides parent-child early education, there are also many interest programs and summer camps here, allowing children to choose what they like to participate in. The entire activity space is safe and warm, where kids can gradually learn to interact with others through communication, and parents can feel at ease watching over them. If you're looking for a warm learning environment suitable for young children's growth, Little Ivies DC is definitely a trustworthy choice!

2.Gymboree Play & Music, Washington DC
Address:2639 Connecticut Ave NW #113, Washington, DC 20008
Website:https://goo.gl/j6CzgG
Gymboree Play & Music, Washington DC is an early childhood education play park designed for children aged 0.5–5 years and their families. Children and parents can participate in early childhood education classes together, gradually developing various abilities through parent-child interaction. The park also offers simulation activities, rhythmic exercises, interactive music, and art creation programs, helping children better express themselves, unleash their imagination, and experience music, while also strengthening their relationships with peers. Gymboree Play & Music, Washington DC, maintains strict sanitation management and features welcoming classrooms. Each activity allows children to gain knowledge and confidence through play. Bring your children and give it a try!

3.Magic Ground
Address:3100 14th St NW 3rd level, Washington, DC 20010
Website:http://www.magicground.com/
Magic Ground is an indoor play place brimming with childlike fun and excitement. Children can climb, run, and explore freely on slides, climbing structures, a ball pool, and an obstacle course. A toddler area is designed for younger children, offering safe activities and peace of mind for parents. For birthday parties, simply make an appointment in advance for one-stop party planning, freeing parents to focus on spending quality time with their children. The spacious and bright recreational area, with meals provided, allows parents to monitor their children's progress at all times, ensuring safety for their children and peace of mind for their families. Bring your kids to Magic Ground for some fun!

The above are the three indoor play zones I introduced to you. Each one has received rave reviews. I believe there is always one that can meet your needs. I wish you and your children have fun!