4 contributing buildings.
Removed from the National Register of Historic Places January 01, 1999.
The Cincinnati Zoo Historic Structures are a collection of historically significant buildings at the Cincinnati Zoo in Cincinnati, Ohio, United States. They were designated a National Historic Landmark on February 27, 1987.
The second oldest zoo in the United States, it opened to the public in September 1875. Significant for the antiquity and richness of its collections and for its efforts in the propagation and nurture of rare and endangered species, it was well known as the home of Martha, the last passenger pigeon.(read more...)
National Park Service documentation: https://npgallery.nps.gov/AssetDetail/NRIS/75001415