This summer I am attending a wedding in Slovenia. I have never been to Slovenia, Venice or Vienna. I can arrive in Europe on a Friday morning and am leaving the following Sunday morning. My question is do people think I should spend the entire time in Slovenia or should I add on Venice or Vienna. I know I don't have time to add both Venice and Vienna. Which once would be best to add if people don't think I should spend the entire time in Slovenia? Also, how many days should I spend in Slovenia and how many should I spend in the other location? Sorry for posting such a broad email.