The Smithsonian National Zoological Park, located in Washington, D.C., is one of the oldest zoos in the United States, established in 1889. It is part of the Smithsonian Institution and is home to over 2,700 animals representing more than 390 species. The zoo focuses on conservation, education, and research, providing visitors with a chance to learn about wildlife and their habitats. The zoo features various exhibits, including the popular Giant Panda Exhibit, which showcases the endangered giant panda. Visitors can explore different habitats, such as the Amazonia exhibit, which highlights the biodiversity of the Amazon rainforest. The zoo offers free admission, making it accessible to everyone.