'' Empty Sky '' is the official state memorial to the September 11 attacks of the World Trade Center . Situated on a berm the parallel walls engraved with the names of victims are oriented to face the former World Trade Center site . Designed by architect Frederic Schwartz , it was dedicated on September 10 , 2011 , commemorating the tenth anniversary of the attacks
September 11 attacks
September 11 attacks
Liberty State Park