Horizon: Swallowed by a Sinkhole

  

Snapshots

Horizon: Swallowed by a Sinkhole6/12. 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]Fri, Jan 20, 1:00 amBBC FOUR60 mins
Horizon: Swallowed by a Sinkhole6/12. 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]Tue, Jan 17, 10:00 pmBBC FOUR60 mins