Work on this vast prestige project on Monte Gaiás, 1.5km southeast of the Old Town, was stopped in 2013 after a decade of delays and budget blowouts. Four of the six main buildings are open, but there's little inside them for casual visitors unless you coincide with a worthwhile exhibition or cultural event. For the curious, the City of Culture does merit a visit for its dramatic 21st-century architecture (by American Peter Eisenman) and as a monument to Spain's boom-gone-bust.
Free guided tours, normally in Spanish, are given at 11.30am and 5.30pm on Saturdays and Sundays. You can get there on bus 9 northbound on Rúa da Virxe da Cerca, hourly from 7.35am to 10.35pm Monday to Friday, 8.35am to 1.35pm Saturday.