Today my Black & White pic is from Milan.
It's a warning from WWII's years: point at the nearest air-raid shelter.
My nomination: 
Here are the Rules
Seven black and white images that represent an aspect of your life
• Present one image every day for seven days
• No people
• No explanation
• Nominate someone every day...but anyone can join the fun
• Use the tag - #sevendaybnwchallenge - as one of your five tags