This is Google Earth image of a real Pentagon in China Shenyang, Lat 41°36'30.02"N, Long 123°31'58.43"E. China can copy anything, I will not be surprise if someone find a durian like building there, or maybe one day they copy Eiffel tower.
(Link) Pentagon in China discovered via Google Earth, via 煎蛋 Digg Digest.
I sortta like one of the reader comment, let me translate,
“Strange enough, I never seen it in Shenyang. Maybe it is a secret agency.”
You can never know…