Eagle Creek Park is one of the largest municipal parks in the United States. It is located at 7840 W. 56th Street in Indianapolis, Indiana and covers approximately 1,400 acres (5 km²) of a reservoir and 3,900 acres (16 km²) of land. There are about ten miles (16 km) of paths within it. Eagle Creek Park serves primarily as a nature reserve. Before coming into the possession of Indianapolis, the land was owned by Purdue University, and by Josiah K. Lilly Jr. before that. The Eagle Creek Park Foundation serves to promote volunteerism and provide funding for the Park and its programs. The NCAA Rowing Championships were held in the Park in 2003 and the World Rowing Championships were held there in 1994.

The Indianapolis Zoo in Indianapolis, Indiana, United States, first opened to the public in 1964. Its current home in White River State Park was opened in 1988. The zoo hosts about 1.4 million visitors each year and plays a role in worldwide conservation and research, including accomplishing the world’s first successful artificial insemination of an African elephant. The Indianapolis Zoo is the only institution accredited by the Association of Zoos and Aquariums (AZA) and the American Association of Museums as a zoo, an aquarium, and as a botanical garden. The zoo is a private non-profit organization, receiving no tax support and is supported entirely by membership fees, admissions, grants, and an annual fundraiser.

The Indianapolis Zoo's stated mission is, "(to) inspire local and global communities to celebrate, protect, and preserve our natural world through conservation, education, and research, and by providing an enriching and wondrous environment for our visitors and the animals in our care." The primary guiding principle for the Indianapolis Zoo is Senegalese conservationist Baba Dioum's famous statement, "In the end, we will save only what we love; we will love only what we know; we will know only what we are taught." The Indianapolis Zoo's main goal is to help people fall in love with wild things and wild places by building powerful and compelling connections that would otherwise be impossible in today's world.

The Children's Museum of Indianapolis, the world's largest children's museum, is located in the city of Indianapolis, Indiana, USA.

Founded in 1925, the museum claims to be the fourth oldest such institution in the world. It is located in a working class neighborhood immediately north of downtown Indianapolis. The current building was built in 1976, and has had several significant expansions since then.

An urban park, also known as a municipal park, is a park that is built in cities and other incorporated places to offer recreation and green space to residents of and visitors to the municipality. The design, operation and maintenance is usually done by city government, or by a county or state government on certain occasions, but may occasionally be contracted out to a private sector company.

Common features of municipal parks include playgrounds, hiking, running and mixed use trails or paths, bridle paths, sports field and courts, public restrooms, boat ramps and/or picnic facilities depending on the budget and natural features available.

According to the Trust for Public Land, the three most visited municipal parks in the United States are Central Park in New York, Lincoln Park in Chicago, and Golden Gate Park in San Francisco, respectively.