This neighborhood embraces both the vanished Rondo district--the onetime center of black life in Saint Paul, eliminated when Interstate 94 came through--and the overwhelming Summit Avenue historic district, probably the largest aggregation of Victorian and Edwardian mansions in the country, of which the biggest and brownest is the former home of James J. Hill, the railroad baron who virtually ruled Saint Paul in the late nineteenth century. Selby Avenue between Lexington and the Cathedral is an urban laboratory: once ghetto-tough, it now supports both African-American and white-run businesses, barbecue places and brunch spots, the Urban League and Garrison Keillor's Common Good bookstore.