The Mission Inn Hotel & Spa

Mission Inn
U.S. National Register of Historic Places
U.S. National Historic Landmark
California Historical Landmark #761
Riverside Landmark #1
Mission Inn, Riverside, California
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Location	3649 Mission Inn Ave, Riverside, California
Coordinates	33°59′00″N 117°22′22″W / 33.98333°N 117.37278°W / 33.98333; -117.37278Coordinates: 33°59′00″N 117°22′22″W / 33.98333°N 117.37278°W / 33.98333; -117.37278
Built	1902–1932
Architect	Multiple
Architectural style	Mission/Spanish Revival
Restored	1985–1992
Restored by	Carley Capital Group and Duane R. Roberts
NRHP Reference #	71000173
CHISL #	761
RIVL #	1
Significant dates
Added to NRHP	May 14, 1971
Designated NHL	May 5, 1977

The Mission Inn, now known as The Mission Inn Hotel & Spa, is a historic landmark hotel in downtown Riverside, California. Although a composite of many architectural styles, it is generally considered the largest Mission Revival Style building in the United States. Mission Inn Hotel & Spa is a member of Historic Hotels of America, the official program of the National Trust for Historic Preservation.

The property began as a small cottage hotel called the "Glenwood Hotel," built by civil engineer Christopher Columbus Miller in 1876. In 1902, Miller's son Frank Augustus Miller changed the name to the "Mission Inn" and started building, in a variety of styles, until he died in 1935.

Miller's vision for the eclectic structure was drawn from many historical design periods, revivals, influences, and styles. Some are Spanish Gothic architecture, Mission Revival Style architecture, Moorish Revival architecture, Spanish Colonial style architecture, Spanish Colonial Revival Style architecture, Renaissance Revival architecture, and Mediterranean Revival Style architecture. With one section over another, addition upon addition, the result is a complicated and intricately built structure, comparable to the Winchester House. It contains narrow passageways, exterior arcades, a medieval-style clock, a five-story rotunda, numerous patios and windows, castle towers, minarets, a Cloister Wing (with catacombs), flying buttresses, Mediterranean domes and a pedestrian skybridge among many other features.