Saint Louis Zoo

25 Best Zoos in the World

"With free admission and roots dating to 1910, this zoo sits within a 1,300-acre urban park and cares for more than 16,000 animals. On-site research and care facilities include an Endangered Species Research Center, Veterinary Hospital, Animal Food and Nutrition Center, and a Reproductive Management Center, and visitors can book behind-the-scenes tours and feeding experiences for additional insight." - Stacey Leasca Stacey Leasca Stacey Leasca is an award-winning journalist and co-founder of Be a Travel Writer, an online course for the next generation of travel journalists. Her photos, videos, and words have appeared in print or online for Travel + Leisure, Time, Los Angeles Times, Glamour, and many more. You'll usually find her in an airport. If you do see her there, please say hello. Travel + Leisure Editorial Guidelines