Ontario Museum of History & Art

About Ontario Museum of History & Art

The Ontario Museum of History & Art occupies a historic structure that originally served as Ontario's City Hall since 1979. Visitors explore exhibits focused on regional history and culture, including Built on Water: Ontario and Inland Southern California, which examines the history, present, and future of water in the Ontario region and Chino Basin through artifacts, images of early water infrastructure, and a mobile app exploring future water management. The museum also features Moments That Made US, an exhibition organized around five themes from the Declaration of Independence: Created Equal, Life Liberty and the Pursuit of Happiness, Free and Independent States, Consent of the Governed, and We Mutually Pledge. The facility includes gallery spaces, a museum store, and visitor services. School tours and group visits are available.