Semi-detached houses with gardens, clothes drying in the courtyards, walls and well-made streets - Pavlopetri epitomises the suburban way of life. Except that it's a Bronze Age port, submerged for millennia off the south-east coast of Greece.This summer it became the first underwater city to be fully digitally mapped and recorded in three dimensions, and then brought back to life with computer graphics. The result shows how much it has in common with port cities of today - Liverpool, London, New York, San Francisco, Tokyo or Shanghai - despite the fact that its heyday was 4,000 years ago. Covering an...