The freighter Emma Maersk has an 80 MW (109,000 HP) powerplant. The engine and specs themselves are impressive. You could stand inside an engine cylinder:
I visited Lars Maersk when she/he (I never know what to do with male-named ships) came back from sea trials. That was my second thought(1) when entering the engineroom. The cylinders were open for inspection and I suddenly realized "that piston is actually big enough for me to stand on."
I haven't been in a modern liner's engine room, though I've seen some smaller and older ship's machinery, and it's impressive stuff.
My thought when encountering a steamship's works (the design was late 19th century), all covered in grease an gunk and pipes and stuff all over the place was "y'know, I write and work on software systems, and if you could physically instantiate them, this is probably what they'd look like".
The tour guide, also the engine wiper, turned out to be a DBA in her day job, and absolutely loved the image.
I visited Lars Maersk when she/he (I never know what to do with male-named ships) came back from sea trials. That was my second thought(1) when entering the engineroom. The cylinders were open for inspection and I suddenly realized "that piston is actually big enough for me to stand on."
1)First thought was how clean it was :-)