How long did it take to rebuild Paris after WWII?
Paris suffered little if any damage during the war.
http://www.washingtonpost.com/opinions/a-history-of-paris-during-nazi-occupation/2014/08/29/fce9e112-222c-11e4-958c-268a320a60ce_story.html?utm_term=.3ede01238a7d