قلعة راتياامبلا – بيئة من أجل المسرح والثقافة
Founded around 1250 as a place to hold meetings and as a prison, Rätia Ampla Castle in Riom has been one of the most idiosyncratic cultural amenities in the Alps since 2006. Currently used as a theatre, the castle hosts the largest theatre and culture festival in Graubünden: the Origen Festival Cultural.