![Shell launches bid to leave massive, sludgy oil rig remnants in North Sea for 500 years | The Independent | The Independent Shell launches bid to leave massive, sludgy oil rig remnants in North Sea for 500 years | The Independent | The Independent](https://static.independent.co.uk/s3fs-public/thumbnails/image/2017/02/07/18/brentbravo.jpg?quality=75&width=1200&auto=webp)
Shell launches bid to leave massive, sludgy oil rig remnants in North Sea for 500 years | The Independent | The Independent
![Inside one of the hollow legs of the Troll A Oil Platform, the tallest and heaviest structure moved by man. (472m) : r/megalophobia Inside one of the hollow legs of the Troll A Oil Platform, the tallest and heaviest structure moved by man. (472m) : r/megalophobia](https://preview.redd.it/sl8ttisd9xv31.png?auto=webp&s=94f53c594f180713e4705ad6e86f629ec4896d9c)
Inside one of the hollow legs of the Troll A Oil Platform, the tallest and heaviest structure moved by man. (472m) : r/megalophobia
![JMSE | Free Full-Text | Review on Fixed and Floating Offshore Structures. Part I: Types of Platforms with Some Applications JMSE | Free Full-Text | Review on Fixed and Floating Offshore Structures. Part I: Types of Platforms with Some Applications](https://www.mdpi.com/jmse/jmse-10-01074/article_deploy/html/images/jmse-10-01074-g016.png)