Man built megasooruzhenie oil and gas industry - gas platform Troll-A.
This is one of the world's largest gas platforms, the giant North Sea.
Within this structure is hidden a lot of innovation to prevent catastrophe.
This building is not only a magnificent engineering marvel, but also the largest object ever moved by man on the Earth's surface.
For the stability of half of the platform was flooded but remained above the water often produces a strong impression. Then a few tugs for 7 days Troll transported to the place of its future operation.