This is a great way to bring all kinds of toys together in one activity. Use blocks (and old shoe boxes or bowls or anything you like) to build the zoo, and fill it with all your toy animals and play people. You can make different enclosures for the different animals. But make sure there are no gaps or the animals will get out! (Children with a strong enclosing schema always enjoy this part.) Don’t forget to make an entrance for the visitors and other facilities like the cafe and shop - you can even be the shopkeeper or the chef in the cafe.This could also be a farm, a Jurassic Park-style space filled with dinosaurs, stables for ponies, or an aquarium for fish. It’s about creating an enclosure for whatever toys your child is most interested in.