What is the biggest lathe you ever see contained by person(not on TV or pictures)?

My biggest one ever seen is that the chuck was 72in contained by diameter. Please be serious.
Answers:
lathe?
At the Northern Nevada Railway Museum in Ely, they have one next to a 3 foot diameter chuck and 20 feet long.
The Naval Weapons Factory (either just in or freshly outside Washington, DC - not sure which) has (or had) the lathes used to manufacture the barrels for 16-inch naval guns. These are 50 caliber, which contained by Navy terms means their length is 50 times the bore, or 16' X 50, or 800 inches. The bed for these lathes took the full 800+ inch firkin. Don't know about chuck size.

I saw these in the precipitate 1970's, looking down on them from a mezzanine. They were HUGE! The whole site be in standby mode then. Don't know if it's even in that any more.
Knoebels Amusement Park have a very large wood lathe. No perception exactly how big. You might be able find pictures of it online. Look for a huge baseball bat that they made on it.
The biggest one I have see was a bridgeport lathe/milling machine. Used a 6 hp motor and could work beside metals as heavy as tungstun. It was pretty cool.


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