The 9/11 Memorial field of Flags is a display of 3,000 on 10 foot flagpoles. Some flags contain the names of all the victims, other flags contain the names of rescue workers killed, and other flags contain names of the 92 nations that lost citizens in the attack. The Memorial Field of Flags is an annual event, held each year in Inwood Hill Park. Along with the flags display, there are other exhibits and events, which change from year to year.