Meet SGC-250 – known as “Big Carl” to his friends – the biggest land-based crane in the world ... offshore energy projects, like oil rigs. Who would win in a fight? It's hard to tell ...

This as-told-to essay is based on a transcribed conversation with Kailem Donovan, an offshore rope access rigger who works on oil rigs in the ... like working with cranes or swapping out pipes.

Designed to assist offshore oil rigs, it cost around 2.97bn dollars to build. The world's largest crane ship, which is capable of lifting oil rigs, has set sail from its shipyard in South Korea ...