The Mission Inn Museum is located in Riverside, California, within the historic Mission Inn Hotel. This museum showcases the rich history and architectural significance of the hotel, which was originally built in 1876. Visitors can explore various exhibits that highlight the inn's unique design, its role in local history, and its connection to notable figures such as President Richard Nixon and Helen Keller. The museum features artifacts, photographs, and documents that tell the story of the inn's evolution over the years. Guided tours are available, allowing guests to learn about the inn's eclectic style, which incorporates elements from different architectural traditions, including Spanish Mission and Mediterranean Revival.