new paving made with porphyry stone blocks of cubic in a pedestrian zone

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 scene patio driveway concrete interlocked tradition pave building activity new made blocks cubic