granite background rectangular block gray toned pattern urban style stiff base track park base site monochrome

abstract architecture backdrop background base beauty block brick build cement city cobble cobblestone color concept concrete cracked cube decor design element granite gravel gray grey grunge hard home line masonry material modern monochrome mosaic old ornament panel park pattern paver puzzle rectangular road rock rough rubble shape site solid square stacked stiff stone structure style surface symmetry texture tile toned track urban wall wallpaper weathered