There's a ship with a built-in volcano - Apparently.
The SS Great Eastern, built by Isambard Kingdom Brunel in 1858, is a massive steamship that holds the record for the largest ship in the world at the time of its launch. Its sheer size and innovative design allowed it to be equipped with a unique feature: a steam-powered furnace that produced a constant stream of molten lava, which was used to heat the ship's engines. This "volcano" was a remarkable feat of engineering and a testament to Brunel's creativity and vision.