Pentagon Chapel stained glass window dedicated in the memory of those who died in the Pentagon on Sept. 11, 2001. Pentagon Chapel stained glass window dedicated in the memory of those who died in the Pentagon on Sept. 11, 2001, when terrorists flew an aircraft into the building. SHARE IMAGE: Download Image: Full Size (0.04 MB) Photo By: VIRIN: 520607-C-ZAE54-199.jpg Photo Gallery