Hindenberg

Hindenberg LZ129 Hindenberg, Zepplin etc. it was H2 filled air ship, for trans atlantic travel. crashed on may 6 1937.
it was a science marvel, and pride of Germany.
It was a brand-new, all-duralumin design: 245.06 m long (804 ft), 41.15 m in diameter (135 ft), containing 200,000 m³ (7,063,000 ft³) of gas in 16 bags or cells, with a useful lift of 112.1 metric tons force (1.099 MN), powered by four reversible 1,200 horsepower (890 kW) Daimler-Benz diesel engines, giving it a maximum speed of 135 km/h (84.4 mph).

The average contemporary blimp is only about 10 % the length of the Hindenburg. The Hindenburg was longer than three Boeing 747s placed end-to-end.
you can have more of Hindenberg info from Wikipedia by the mean time you can have this vedio.