The Municipal Art Society of New York. MAS conducts a series of walking tours that emphasize the architecture and history of particular neighborhoods. Options include Transforming 57th Street, Noted and Notorious Women of Downtown, and Where Brooklyn Meets the Middle East. An official daily walking tour of Grand Central explores the 100-year-old terminal's architecture, history, and hidden secrets. Tours begin in the main concourse at 12:30 and last for 75 minutes.
Tickets can be purchased in advance online or from the ticket booth in the main concourse. 111 W.57th St., New York, NY, 10019. 212/935–3960; 212/935–3960 recorded information. www.mas.org. $20.