A medieval tower in northern Italy is on the verge of collapsing. Historians and construction experts are using all means at their disposal to try and save it.Subscribe: https://www.youtube.com/user/deutschewelleenglish?sub_confirmation=1For more news go to: http://www.dw.com/en/Follow DW on social media:Facebook: https://www.facebook.com/deutschewellenews/Twitter: https://twitter.com/dwnewsInstagram: https://www.instagram.com/dwnewsTwitch: https://www.twitch.tv/dwnews_hangoutFür Videos in deutscher Sprache besuchen Sie: https://www.youtube.com/dwdeutsch#Italy #Bologna #Towers