Though many have likely already pored over all the extras on the multiple Blu-ray and DVD releases of The Dark Knight Rises, some might not have made it to the "concept art" section just yet.  For those of you that haven’t, a massive collection of images from said bonus feature has now landed online.  The result is a interesting look at the development and design process of a number of costumes and props from the film, including Bane’s mask, Catwoman’s goggles and costume, the Batpod, weapons, and even “Howard Hughes Bruce Wayne.”

Hit the jump to take a look at all the images.  The Dark Knight Rises is available on Blu-ray, DVD, and digital download now.

Courtesy of Batman Hungary (via CBM).