These are panoramic images 
  taken using a specially built SLR camera mounted on a motorized tripod which 
  spins about the center of projection to produce a series of images which may 
  then be 'stitched' into a continuous view. 
  
  
 
 
  Astor Cinema image for 
    projection onto a cylinder.
    (Image provided kindly by Steven Morton) 
    
  
 
 Sydney Town Hall image 
    for projection onto a cube.
    (Image provided kindly by Peter Murphy.) 
    
  
 
 Sydney Town Hall image 
    for projection onto a sphere.
    (Image provided kindly by Peter Murphy.)