What is the fine-grained topic of the following text: The venue of the exhibition is the dungeon of Lendava Castle, which has lived through numerous forms of metamorphic contents, from serving as a jail to a studio, a place of amusement to a place of storage, whose unplastered walls emphasise the surreal and hyperrealistic nature of the captured characters. Only return the topic.
Exhibition at the Lendava Castle Dungeon