The South End is bordered by 12th Avenue on the north, South 16th St. and the Union Pacific Transfer railyards on the west, Interstate 80 and Interstate 29 on the south, and the South Expressway (Iowa Highway 192) on the east. This neighborhood developed during the late 19th century with the railroads, especially the Chicago, Rock Island and Pacific Railroad, the Chicago, Milwaukee and St. Paul Railway, and the Chicago, Burlington and Quincy Railroad. In the early 20th century much of the area was dubbed "Dane Town" or "Little Copenhagen" for the large number of Danish immigrants with several Croatian and Mexican families closer to the Union Pacific railyards at "Little Vienna". Neighborhood landmarks include Peterson Park, Longfellow School, and the 1899 Chicago, Rock Island and Pacific passenger depot, now the RailsWest Railroad Museum.