Horizon: Swallowed by a Sinkhole
BBC FOUR
Friday 20 January 2017 01:00 - 02:00 (60 mins)
6/12. Science documentary series. Professor Iain Stewart travels to Florida to investigate sinkholes, and why the geology of this state makes it the sinkhole capital of the world. Also in HD. [AD,S]
Horizon: Swallowed by a Sinkhole may be available on playback |
