abstract background blocks circle circular curve grey moss path pattern pavement pie segments seven sidewalk slices stone texture cobble cobblestone dust ground old paver pebble pebbles road rock sand street walk ancient backdrop bark creation forest green grow growth lichen natural nature rough tree trunk wood brown crack crevice dark light macro pine shadow skin trees bio close effect mark mold organic score split UP wooden zoom blue Carpathians Central Europe footpath High Tatras hike hiking landscapes mountains Slovakia stripes tatra trail walking waymark white area asphalt backgrounds block brick bricks building granite hard material patterned patterns repitation sideway square stones textural textured textures urban walkway wall walls