Blimps are crazy

The Graf Zeppelin was not a blimp. A blimp, or non-rigid airship, is an airship (dirigible) without an internal structural framework or a keel. It also had an aluminum skin. Zeppelins used hydrogen as the lifting gas which was why it exploded and burned up so spectacularly. The cause for the explosion most likely was due to a massive static charge, but is still not conclusively proven.
America also had huge dirigibles that were used by the military called the Macon and the Akron. Both crashed due to bad weather conditions. The key difference was the Macon and Akron used helium as the lifting gas. Helium is not unstable as hydrogen. In fact, the US military still maintains a strategic reserve of helium to this day for military lighter than air aircraft.