Princeton Railroad Museum

Princeton Railroad Museum's 15th Anniversary Celebration featuring free trolley rides to all area museums, living history performances about Mark Twain, Helen Keller, Booker T. Washington, and Harriet Eliza Lathrop, five museums with free admission (Railroad Museum, Agricultural Museum, Those Who Served War Museum, Mercer County Historical Society, McNutt House), bounce house, petting zoo, horse and wagon rides, fire truck viewing, live music by Common Ground, and food vendors. Hours: 11am to 5p