Imagine you're somewhere in... France. You're in the middle of a very relaxing and pleasant stroll in a little, magic town in the south, when, suddenly, you find yourself in the middle of a grape battle. That sounds cool if you're not allergic to grapes! So, in order to prevent these weird situations and to know about incredible festivals, art exhibitions or concerts wherever you go, have a look at the place-you're-going tourist website and plan your visit. Another way to know cultural agendas is through some webs, like TimeOut. Great articles about the greatest human achievement: culture.
http://www.timeout.com/