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Boardwalk hall, or the Atlantic city convention hall may have the largest vaulted ceiling i the world. The hall is 500ft long by 350ft wide and 137 ft tall. The ceiling has only the walls of the building for support, there are no pillars in the hall, and the view is therefore unobstructed. —Preceding unsigned comment added by 81.145.240.17 (talk) 14:16, August 24, 2007 (UTC)

There is a question about ship's hull roof, as Palazzo della Ragione (ex- Medieval Municipal Court), indeed the schematic draw resamble ship's hull

I have put Palazzo della Ragione in Padua, but I think that it is ship's hull type. In Venice, numerous bulding have these roofs also Maggior Consiglio hall that it is a very big ship inverted obviousoly without false ceiling. Indeed often barrel vault are false ceiling. --84.222.73.121 (talk) 20:02, 1 June 2011 (UTC)[reply]

barrel vault indubetely is not ship's hull: palazzo della ragione