Dartmoor, in Devon, is a very special place: 60.000 ha of nature left (almost) unchanged for several thousand years. If you pay attention to the valleys and find one with a gentle slope, a spring and the right orientation towards the sun, you are very likely to find in the ferns remnants of villages abandoned 2000 years ago. It is still used now as open grazing land for horses, the Dartmoor poney, sheeps and cows. I'm in the area every 6 months and spend 2 or 3 days there every time.