Corridor between two medium speed diesels.
https://www.reddit.com/r/EngineeringPorn/comments/16f9l4q/corridor_between_two_medium_speed_diesels/My turn. Another ships engine. Not as big, but there are 5 of them
https://www.reddit.com/r/EngineeringPorn/comments/16f7xr3/my_turn_another_ships_engine_not_as_big_but_there/Saw a ship’s engine, so I figured I’ll keep the trend going
https://www.reddit.com/r/EngineeringPorn/comments/16czz78/saw_a_ships_engine_so_i_figured_ill_keep_the/Speaking of Giant Turbochargers, Here's One From a Low Speed Diesel Ship Engine
https://www.reddit.com/r/EngineeringPorn/comments/10zi1x6/speaking_of_giant_turbochargers_heres_one_from_a/