It's confusing when the Swiss go to the polls. Here are 6 surprising things about their elections

On Sunday, Switzerland votes on its federal parliament. The members of both chambers - 200 National Councillors and 46 Councillors of States - are directly elected, with the 26 Swiss cantons (or provinces) forming the districts. Seats in the National Council are distributed to the cantons based on their population size, while in the Council of States each full canton gets two seats and the six half-cantons get one each. Here are six things to look out for.