Two teams of engineers battle against storms and snow to relocate two, super-tall, top heavy towers.At Heathrow, an 1000 tonne glass and steel Air Traffic Control Tower has to be moved across one of the world's busiest runways.Meanwhile in the frozen mountains of Canada, five 140 foot grain towers have to be moved 20 miles through a vicious snowstorm.

Starring:

John Michie, Mark Keller

Genre:

Documentary