Take the express route to the new national september 11 memorial and museum in new york city on a one day hop on hop off cruise through new york harbor your hop on hop off ticket is valid for one day and includes timed admission to the 911 museum located within the archaeological heart of the world trade center site the museum containing over 100 000 square feet of exhibition space tells the story of 911 through multimedia displays archives narratives and a collection of monumental and