The initial purpose of the doughnut island was to capture freshwater. Click to read more. A doughnut-shaped island off the coast of England, United Kingdom, built as a tidal barrage several decades ago has been abandoned.
Ancient elites in the past may have partied in the man-made islands, archaeologists say. Artificial islands surrounding the British Isles in Europe could once be a site of ancient parties held by our ancient ancestors, according to archaeologists.