How to use "cobblestones" in a sentence

Twenty minutes later, at 3:45, she stepped onto the smooth cobblestones in front of the hotel's main entrance and handed her claim check to the valet parking attendant

Directly overhead, the ceiling of the immense porte cochere was lined with hundreds of lights; none of the bulbs were burning now, but after nightfall, they would rain dazzling, golden luminosity upon the glossy cobblestones below