Lost for words Sometimes our attempts to impress the locals don't go according to plan as your contributions prove. Full details on forthcoming BBC TV and radio programmes. Image caption Lidar technology has revealed the original city of Angkor - red lines indicate modern features including roads and canals The archaeologists. Pripyat was built as a town for workers at the Chernobyl power station, where the world's worst nuclear accident occurred 20 years ago. The town was abandoned 36. By BBC News Online's Tom Housden The remains of what has been described as a huge lost city may force historians and archaeologists to radically reconsider their view. An international team of scientists, cavers and wildlife filmmakers venture deep into the heart of the remote tropical island. A vast network of 200-year-old tunnels lies beneath Liverpool’s streets – and no one knows why they’re there. Chris Baraniuk meets the dedicated volunteers. Lost Treasures of the Sikh Kingdom BBC Documentary 2014 Full In the birthday week of the founder of Sikhism, TV auctioneer James Lewis tells the story of.