Dubai Mall is impressive having a variety selection of stores where one can feel that their visit is worth it. There are a broad variety of shops for food, groceries and clothes. There is also an indoor aquarium having a viewing tunnel through the middle and a large fish tank that measures around 45 meters and home to around 33000 species. There is the Discovery Center which is upstairs and is it very good to gain a good educational guide and small enclosure housing penguins, otters and seals.
Don't go in a rush for you do need quite a long time to see it all. Besides all the hundreds of shops, there are a lot of restaurants to suit all pockets from the food court to fine dining.... more A large aquarium, an ice rink, dancing fountains, it is an amazing place. Also break your neck to look up to Burg Khalifa. What a masterpiece.