Tree, Plant, Tree Trunk, Outdoors, Grass, Wall, Building, Bunker, Slate, Conifer, Fir, Abies, Land, Nature, Soil, Ruins, wall, historic, celtic, monument, hidden, Germany, forest, old, remaiins, architecture, past, ruin, stone, sandstone, holy monument, place of worship, ancestors, German history, building, woods, memorial, historical, district, sedimentary rock, unsoundness, decay, arenaceous rock, devastation, person, wood, european country, deterioration, rock, germany, indo-european, vegetation
wall of an historic celtic monument hidden in a German forest