Bath, Somerset. England.
Bath was bombed by the Luftwaffe over 3 days (25 - 27 April 1942) which has become known locally as the 'Bath Blitz'. Some 19,000 buildings were damaged and over 400 people killed.
It's commonly said that these bombings were in retaliation for the Allied bombings of Lübeck and Rostock which were both beautiful Heritage cities - Canterbury, Exeter, Norwich & York were also bombed in a series of raids nicknamed the 'Baedecker Raids' after a tourist guide by Karl Baedecker.
I've never read much about this, just heard vague stories (I moved to the Bath area 15 years ago) however nosing around for some detail I found this site:
http://www.bathblitz.org/ - which is now bookmarked.