Taking a night photo of the Eiffel Tower is an exercise in timing. You have to know the start and end times for the different light shows.
At 7:03 PM, I saw the glittering Eiffel lit up like a jewel.
Nikon D800, AF-S Zoom-Nikkor 24-70mm f/2.8G ED, ISO 100, 66mm, 0 EV, f/16, 5.0s
A few minutes later, at 7:06 PM, it was back to the regular Eiffel. Not bad, but not as dazzling as the previous view.
Nikon D800, AF-S Zoom-Nikkor 24-70mm f/2.8G ED, ISO 100, 66mm, 0 EV, f/16, 30.0s