Previously the domain of Seattle University students and Central District cab drivers, the half-mile between the beginning of Spruce Park (12th and Jefferson) and Capitol Hill (12th and Madison) is evolving, literally every week. The university is opening a new bank of dorms?with retail space?in the fall; Ba Bar, posting up in the old Watertown space, serves Vietnamese snacks until 4 a.m.; and a new affordable housing development has just broken ground. Start on the east side of the street and walk back on the west; all told, you?ll find few miles with as much organic cultural diversity as these blocks. CHRIS KORNELIS