In Spain (and most of Europe, I assume, but can't really tell since I only vote here) you have an ID card (with a picture, among other things), and you are assi

In Spain (and most of Europe, I assume, but can't really tell since I only vote here) you have an ID card (with a picture, among other things), and you are assigned a voting location according to your latest census data. In that location, there is a list of the people with a right to vote there. When you vote, your name is marked on the list. No-one gets to see your vote (well, until counting, but there is nothing identifiable along your ballot), the only thing that is not anonymous is the fact of whether you voted or not. Oh, and the people assigned to do the task (checking the ID, marking the stuff, later on counting the ballots) are randomly chosen from the local census. Accredited people from the political parties can be part of the counting (but not touch anything until the first count is done).