A merchant mariner gave a tour of a 958-foot cargo ship in 2019 that showed the intricacies of the hulking freighters that haul 90% of the world's goods.

Item 1 of 6 The merchant fuel ship which sank off the coast of Gabes in Tunisia on April 15, 2022 is seen this handout picture taken in Rostov-on-Don, Russia November 12, 2017.