Small green frog in Arboretum Mlynany (Slovakia). Arboretum is a “green live map of the world” – perhaps these words would characterize the beautiful park spread out in the village Vieska nad Žitavou. There grow more than 2300 species of valuable exotic woody plants. Characteristic feature of the park is extensive representation of evergreen woody plants. They come from vorious, climatically different, parts of the world.