new italian paving made with porphyry stone blocks and white marble of cubic in a pedestrian zone

marble rock porfido porphyry outdoors sanpietrino pebble bricks pavement paving cobblestones cobble cobblestone stone material floor flooring italy italian geometric urban decorative decoration walkway ground traditional block sidewalk brick paved design construction natural shape road pedestrian zone footpath street modern patio driveway interlocked tradition pave building activity