'' Postcards '' is an outdoor sculpture in St. George , Staten Island , New York City , United States . Built in 2004 , it is a permanent memorial honoring the 274 Staten Island residents killed in the September 11 attacks of 2001 and in the 1993 World Trade Center bombing . The dead include many who worked at the World Trade Center , police and firefighters who joined the rescue effort and were killed when the towers collapsed , and one passenger on United Airlines Flight 93 , who died in the crash in Shanksville , Pennsylvania . One individual who was killed in the 1993 World Trade Center bombing is also represented
United Airlines Flight 93
United Airlines Flight 93
Postcards (memorial)