Downtown Houston Holiday Celebration Dec 3, 2006 2:01:24 GMT -5 Quote Select PostDeselect PostLink to PostBack to Top Post by admin1 on Dec 3, 2006 2:01:24 GMT -5 Mayor's Official Downtown Houston Holiday Celebration. At City Hall, 901 Bagby. Watch our famous skyline come alive with music, lights and fireworks! Call 713-247-3500 for more info.