San Diego Zoo – california, USA

With a land area of 100 acres, The San Diego Zoo is situated in Balboa Park, San Diego, California housing over 3,700 animals of over 650 species including giant Panda and gorilla. It also houses a botanical garden with over 700, 000 plants. The zoo simulates the natural habitats of the animals offering cage-less exhibits in open air. Besides the gondola lift, Skyfari, providing aerial view of the animals in the wild, the zoo also organizes guided tours covering most of the area. The zoo offers many tour plans including Monkey Trails, Panda Trek, Polar Bear Plunge and many more.