The Smithsonian National Zoological Park, also known as the National Zoo, is a prominent zoological park in Washington, D.C. It offers an educational and entertaining experience with over 2,700 animals representing more than 390 species. As part of the Smithsonian Institution, admission to the zoo is free, making it a popular destination for families, animal lovers, and tourists alike. Visitors can explore various habitats and conservation efforts while enjoying the beauty of one of the nation's oldest zoos.