Zeppelins are actually quite an impressive species of aeronautical engineering—you know, when they aren't on fire. That's especially true considering the level of technological prowess in the 1920's. Our friends at Oobject have assembled 12 shots of these magnificent air-borne cruisers before they ever lifted off.
Be sure to also check out the hangers that housed these zeppelins, these impressive aircraft factories, and some interesting balloons.