The secrets of Knowth 5 walled cities from 300 BCE unearthed in India Vietnamese cave reveals relics and tombs from the Neolithic Archaeologists try to date the Brodgar megaliths on Orkney 2,900 year old Phoenician remains unearthed in Lebanon Find in USA nothing more than a fraud 5,000-year-old relics found in Iran Ancient village discovered in Arizona Huge necropolis discovered in Sicily Neolithic cremation urns found in Istanbul Iron Age 'town in the sky' is revealed in Wales Iron Age replica goes up in flames in Wiltshire Did ancient Scots stop erecting monuments because of a climate change? English Heritage Protection Bill could be axed Dig unearths ancient Turkish treasures