'The Troll, seen here, is one of the world's largest examples of this kind of structure'
Oil rig
THE DISCOVERY CHANNEL: The Troll, seen here, is one of the worlds largest examples of this kind of structure
The Troll, seen here, is one of the world's largest examples of this kind of structure
The Troll, seen here, is one of the world's largest examples of this kind of structure
THE DISCOVERY CHANNEL
Oil rig
THE DISCOVERY CHANNEL