Flying Cruise Ships: What Happened To Giant Airships?
The Airlander 10 airship gets ready for flight - BBC Click
HOW IT WORKS: Balloon Airships
The first American-built rigid airship, USS Shenandoah
The History of Airships and Zeppelins documentary
A rigid airship is a type of airship in which the envelope is supported by an internal framework rather than by being kept in shape by the pressure of the lifting gas within the envelope, as in blimps and semi-rigid airships. Rigid airships are often commonly called Zeppelins, though this technically refers only to airships built by the Luftschiffbau Zeppelin company.