1 ฤดูกาล
6 ตอน
Underground Britain - Season 1 Episode 3
In this episode, Rob explores two natural wonders in the Yorkshire Dales - a mile of caves and one of Britain's deepest potholes. In Stockport, Rob learns how its unique geology made it the perfect spot to build the country's largest air-raid shelter and he discovers the incredible depths that are being plumbed to retrieve agricultural fertiliser.
- ปี: 2014
- ประเทศ: United Kingdom
- ประเภท: Documentary
- สตูดิโอ: 5
- คำสำคัญ:
- ผู้อำนวยการ:
- นักแสดง: Rob Bell
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