Parks in the United States are designated areas that provide recreational opportunities and protect natural landscapes. They can be found at local, state, and national levels, with the most famous being the National Park Service sites like Yellowstone and Yosemite. These parks offer activities such as hiking, camping, and wildlife observation. Many parks also serve as important habitats for various species and help preserve the environment. Urban parks, like Central Park in New York City, provide green spaces for city residents, promoting health and well-being. Overall, parks play a vital role in American culture and conservation efforts.