Trajan's Plaque, a marble Roman plaque on the banks of the Danube River in the Kazan Gorge region of the river, Serbia, Europe

europe region serbia adobe archaeological site archaeology archeological site archeology banks beauty in nature carving civilisation civilization cliff color color image colour danube river day daytime environment european horizontal kazan gorge marble memorial montenegro monument mountainside nature nobody ocean outdoors outside photography plaque podgorica river riverbank riverside rock roman rugged sculpture sea south east europe southern european stone stone carving stonework sunny sunshine tough tourist attraction trajan's plaque travel travel destinations water