During electrical work in Wales, UK, builders discovered a medieval 900-year-old tunnel. The builders were laying trenches for underground cables.
The tunnel is located in Monmouthshire, near the ruins of the Abbey, founded in 1131.
The tunnel is built of brick, is 1.2 meters high, and runs under a pedestrian road. According to specialists, it is not marked on any cartographic map. Neither the local authorities nor the residents knew anything about him.
The tunnel, which is called an amazing and unique discovery, should be explored by archaeologists.