Summer is a common time for many to go on vacation, and some may even find themselves in Europe during that time. Unfortunately, one of the most common causes of sickness while traveling is from drinking contaminated water.

To help us better understand where in Europe it's okay and not okay to drink tap water, check out this handy infographic created by Citybase Apartments. Also check out a recently published article in Conde Nast Traveler for some tips too.