纪录片：寻找二战德国航母：齐柏林伯爵号

齐柏林伯爵号（Graf Zeppelin），德国二战航空母舰，也是历史上德国唯一下水过的航母。本片讲述神秘纳粹战舰的设计、建造，以及残骸的探索。 Finding the Graf Zeppelin While exploring the Baltic Sea in 2006, a Polish oil firm stumbled upon the remains of Germany’s first – and last – aircraft carrier at 80 meters depth off the coast near Gdansk. It was a discovery that solved an enduring maritime mystery that had baffled experts for over half a century.