San Diego Things To Do: The San Diego Zoo opened in 1915, after the culmination of the Panama-California Exposition, where many Americans were first introduced to animals from other parts of the world. Over 4,000 animals now call the San Diego Zoo home, including the rarely-seen-in-captivity Giant Panda. Many exhibits are designed to safely allow the observation of animals without cages.
The San Diego Zoo is widely-regarded as one of the most progressive zoos in the world. They offer a full schedule of special events and experiences like animal interactions and sleepovers.