 The film was shot at the Pinewood Studios in London, Porto Cervo in Sardinia (Hotel Cala di Volpe), Egypt (Karnak, Mosque of Ibn Tulun, Gayer-Anderson Museum, Abu Simbel temples), Malta, Scotland, Hayling Island UK, Okinawa, Switzerland and Mount Asgard on Baffin Island in the then northern Canadian territory of Northwest Territories (now located in Nunavut).As no studio was big enough for the interior of Stromberg's supertanker, and set designer Ken Adam did not want to repeat what he had done with SPECTRE's volcano base in "You Only Live Twice"—"a workable but ultimately wasteful set"—construction began in March 1976 of a new sound stage at Pinewood, the 007 Stage, at a cost of $1.8 million.To complement this stage, Eon also paid for building a water tank capable of storing approximately 1,200,000 gallons (5,500,000 litres).