fragment of pavement paved with rough square gray stone blocks with uneven edges in form of semicircular arched streaks

abstract ancient arc arched architecture array avenue backdrop background block blocks brick bumpy coarse cobble cobblestone curve divergent edge edges floor footpath form fragment gray ground grunge halfring masonry medieval mosaic pattern paved pavement paving ray road rock rough row semicircle semicircular sidewalk square stone streaks street structure surface texture tile uneven vintage walking