Go on an architectural walking tour with Jon Ritter, NYU Professor of 19th and 20th century architecture and urbanism -- and PS3 dad. Jon will take up to 15 people at mutually convenient time and date.  Itinerary will is your choice of Manhattan neighborhood including: South Street Seaport, the Battery, Wall Street, City Hall area, Soho, Greenwich Village, West Village, Ladies' Mile/Gramercy Park, Upper West Side, Morningside Heights, 42nd St./Rockefeller Center, or another area that interests you and your guests.