Take a free-guided walking tour of one of the largest City Hall's in the United States, Buffalo City Hall. Built between 1929-1931 by Dietel & Wade with Sullivan W. Jones in Art Deco. Meet inside the main lobby before noon and explore the building inside and out. Monday - Friday 12pm-1pm. (This operates year-round except on Holidays). The Observation Deck is open M-F 9am-5pm at no cost.