Picture of the Day: May 8, 2012SYOU'LL BELIEVE A FORTRESS CAN FLY | Concept art for the S.H.I.E.L.D. Helicarrier from the Avengers by Nathan Schroeder, which was sent to us by production designer James Chinlund to add to our piece about the design secrets of The Avengers, along with another piece of Helicarrier concept art. See the other piece of new concept art here.

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