Seawise Giant

Seawise Giant, later renamed Happy Giant, Jahre Viking and finally Knock Nevis over its career, was an ultra large crude carrier oil tanker built in Japan in the 1970s and later lengthened, becoming the longest and among the largest ships ever built by deadweight tonnage, at more than 458 meters in length, too large to pass through the Suez or Panama canals or navigate the English Channel. She was damaged and sunk during the Iran-Iraq War in 1988 after an Iraqi air attack while at anchor near the Strait of Hormuz, then raised, repaired and returned to service under new ownership, before finally being retired and scrapped in the early 2010s after decades as the largest self-propelled vessel ever to have sailed.