Summit Avenue is a street in St. Paul, Minnesota, United States, known for being the longest avenue of Victorian homes in the country, having a number of historic houses, churches, synagogues, and schools. The street starts just west of downtown St. Paul and continues four and a half miles west to the Mississippi River where Saint Paul meets Minneapolis. Other cities have similar streets, such as Prairie Avenue in Chicago, Euclid Avenue in Cleveland, and Fifth Avenue in New York City. Summit Avenue is notable for having preserved its historic character and mix of buildings, as compared to these other examples. Historian Ernest R. Sandeen described Summit Avenue as "the best preserved example of the Victorian monumental residential boulevard."