Zurich’s Zoological Garden (Zurich Zoo) is a great place to spend a day with the family. The zoo is home to over 4,000 animals from over 350 species, making it one of the largest zoos in Europe. Highlights include the elephant enclosure, the rainforest hall, and the aquarium. The zoo is open every day of the year except Christmas Day, and admission is free for children under the age of 16.