O'Bannon's early Alien script: DVD version: Inside the Pyramid scene:

          INT. Pyramid

                                  BROUSSARD
                    Tunnel's gone - cave or something below
                    me - feels like the tropics in here, air
                    is hot and humid ...

          Struggling, he releases his purchase on the stone and begins to lower
          himself on power. He dangles free in darkness, turning slowly on the
          wire as the chest unit unwinds.

          HITS BOTTOM

          Broussard is standing on a dusty stone floor, surrounded by solid
          darkness. He flashes his datastick around - the beam reveals stone
          walls, which are carved with STRANGE HIEROGLYPHICS

          These images have a primitive, even a sacred appearance. Line after
          line of pictograms stretches from floor to ceiling, an epic history in
          an unknown language. Huge symbols dominate one wall. They could almost
          be Mayan. 

          Spaced at intervals are stylized stone statues of strange MONSTERS,
          half anthropoid, half insect.

          Broussard moves his light along the pictures on the wall. They depict
          other freakish HYBRIDS

                                   BROUSSARD
                    It's unbelievable! It's like some tomb
                    ... it's like a religion or something!
                    Hey, anybody there? Do you read me?
                    Standard!

          Annoyed, Broussard yanks off his breathing goggles, and leaves them
          hanging around his neck.  He takes a deep breath of the wet air.

(source: Online version of the early Alien script by Dan O'Bannon)