The biggest moving object ever created by human hands. Period.
She was built in
1979 as Seawise Giant, was later renamed Happy Giant, and then Jahre Viking. Very recently (
2004) she has been renamed again, and is now called
Knock Nevis.
This is the news. Today the
supertanker Jahre Viking collided head on with the
USS Nimitz. The
Nimitz was obliterated, while the Jahre Viking suffered minor damage.