The Louvre presents plenty of opportunities for night photography. You can focus on the pyramids, their relationship to the surrounding pavilions, as well as attempt a mirror image with the reflecting pool. From the flag above Pavilion Sully, you can see how vigorous the wind was blowing that that.
Nikon D800, AF-S Zoom-Nikkor 24-70mm f/2.8G ED, ISO 100, 42mm, 0 EV, f/16, 13.0s