USA. 2014. New York, NY. Street performers in Zuccotti Park, just down the block from the 9/11 memorial and museum. On May 21, 2014, the 9/11 Museum opened to the public. 7000 free tickets were reserved well in advance, and the plaza was modestly crowded with visitors. Although the exhibition space has been well reviewed, the museum has been the subject of some controversy. The large gift shop has been criticized as overly commercial and a VIP party the night before the opening was criticized for serving alcohol and having a festive atmosphere.