Lincoln Park Zoo

Lincoln Park Zoo, also known as Lincoln Park Zoological Gardens, is a 35-acre zoo in Lincoln Park, Chicago, Illinois. The zoo was founded in 1868, making it the fourth oldest zoo in North America. It is also one of a few free admission zoos in all of North America. The zoo is an accredited member of the Association of Zoos and Aquariums. The zoo also became an accredited arboretum in 2019.Lincoln Park Zoo is home to a wide variety of animals. The zoo's exhibits include big cats, polar bears, penguins, gorillas, reptiles, monkeys, and other species totaling about 1,100 animals from some 200 species.

Also located in Lincoln Park Zoo was a burr oak tree which was estimated to be 250+ years old. The tree was cut down on May 2, 2023, due to poor health. Thirty-six scions of the tree were grafted onto root stock and are growing at the Morton Arboretum.