Every time i go to Miami i take my kids there , they love all the interactive games they have! It also has good prices and you stay out of the hot weather.

Miami Children's Museum is a fantastic interactive museum for kids and the grown-up kid. Younger children will marvel at the plethora of interactive exhibits, and be delighted that they can touch and move anything they want in this colorful and inviting museum created just for them. The first floor includes a bank, supermarket, hospital, fire station, veterinary clinic, and television studio – all sized for kids. Upstairs, children of all ages can make art and music, board a cruise ship, work on a loading dock, and much more. The more adventurous can climb Mt. Michimu, a kid-sized rock climbing wall.

When I was younger I remember this being the coolest place ever, but when I went on a trip with my niece I noticed things were dirty and that the staff was not very friendly to me on my visit. Although I try not to judge just based on staff members, all in all my niece had a great time and that's what mattered most.

Given the entire day of fun my two boys (aged 5 and 3) had here, I feel mean pointing out a few of the niggles. Car parking is in a city-run, pay-by-the-hour lot with a three-hour maximum (at least that's what I was told when I used the pay-by-phone option). Three hours is just not enough. Also, there's only one pay machine in the lot, which left families standing in 90F-plus heat waiting their turn. Not a good start fro cranky kids who just want to get on and play. There is another pay machine in the lobby of the museum, but of course you only discover that AFTER you've waited for the outside one!
The museum itself is very good. A little pricey at $16 for adults and children, but Bank of America cardholders get free admission the first weekend each month and Florida residents get $4 off as well (there are more discounts for Miami residents), so the deals combined lowered what would have been a $64 tab for us to just $24 - and that was terrific value.
There are so many areas inside to entertain and challenge children, my boys particularly loved the remote control boats and the cargo loading crane, but the mini-city and Olympic-themed play areas downstairs were a big draw too. There really is plenty for small children to get their hands on. Some areas need a little sprucing... some of the electronic displays on some exhibits and attractions didn't work, half of the music room was switched off and the shelves of the Publix supermarket play area were stripped of any play food - most of it had been thrown on the floor by other kids and there seemed to be nobody 'restocking'. My three-year-old was a bit bewildered pushing an empty cart round a supermarket with nothing to put in it.
Also, the only food for sale is in a Subway franchise in the lobby. Personally I don't think that's a very healthy option for an attraction aimed at children, but I guess the museum needs the $$$ and it's an easy option to franchise out.
But that aside, we were delighted with our visit and what was going to be a short stay turned into an all-day adventure. Just don't tell the City of Miami we overran our time in the parking lot!