Wikipedia https://zh.wikipedia.org/wiki/空天_(纪念碑)
Official website http://www.nj911memorial.org/
Twitter https://twitter.com/NJ911EmptySky
Facebook https://www.facebook.com/EmptySky911
电子邮件 info@nj911memorial.org
电话 +1 732 859 3700
地址 1 Audrey Zapp Dr, Jersey City, NJ 07305, USA
坐标 40°42'29.751" N -74°2'5.74" E
