Golgonooza is a mythical city in the work of William Blake. Golgonooza is a City of Imagination built by Los, the spiritual Four-fold London, a vision of London and also linked to Jerusalem and is Blake's great city of art and science. Fourfold internal structure of the city reflects the fourfold structure of the Sons of Los. Blake explains this as follows: (Jerusalem 12:45-53) Building Golgonooza Los stands in London on the banks of the Thames but it covers the whole of Britain: (Milton 6:1-7)