> http://www.huffingtonpost.co.uk/2013/10/03/submarine-invades-milan-pictures-video_n_4035165.html
> わけわからん(;´Д`)なんでいきなり潜水艦が…？
> なんかの映画？

The images are actually of an ingenious stunt by Italian insurance group Europ Assitance IT, as part of their Protect Your Life campaign.

参考：2013/10/07(月)19時41分53秒