This event includes a tour of six of the most interesting sites in Biddeford, ranging from a view from the City Hall clock tower to  the thirty-foot tunnel that runs beneath and through the entire Lincoln Mill complex. After the tour, there will be food, refreshments, entertainment, and an auction at North Dam Mill.The tour will take an hour to an hour and a half and is followed by appetizer-sized treats from a variety of the many downtown restaurants. The event starts at 6 P.M. at McArthur Hall, off Jefferson Street.