Many of the key places in the Revolutionary struggle are featured in the book, including Boston Harbor, Paul Revere's house, and Dorchester Heights, from where George Washington threatened the British garrison. The book shows how the Big Dig has transformed the city, which despite the march of the 21st century has managed to preserve a large part of its remarkable history. Sites include: Boston Light, USS Constitution, Bunker Hill Monument, Old North Church, Charles Street Jail, Scollay Square, Union Oyster House, Quincy Market, Faneuil Hall, Dock Square, Old State House, Massachusetts State House, Boston Common, Old South Meeting House, Long Wharf, South Station, Liberty Tree Site, Copley Square, Boston Public Library, Museum of Fine Arts, Fenway Park, Kenmore Square, and Cyclorama. Pairing vintage photos with the same view today, "Boston Then and Now" shows how the city has preserved its historic past alongside the highrises and the Government Center.