portuguese pavement of mosaic stones on the sidewalks of lisbon, portugal

art flooring pattern design circle floor textile font wall line symmetry iron number brown tile mosaic drawing asphalt decorative portuguese cobblestones calasect ada portuguesa sidewalks avenida liberdade lisbon portugal decoration floral patterns stones black white pavement abstract basalt city cobblestone contrast covering irregular shape laying limestone material ornament paved paving public spaces road seamless sidewalk sign stone street texture urban vintage workers