This photograph of the Eiffel Tower was taken just after sunset in August, 2018.  The vantage point is the Ferris wheel in the Jardin des Tuileries. The strobe lights that flicker on the hour during the night can be seen flashing.
<a href="//commons.wikimedia.org/wiki/User:Zenswashbuckler" title="User:Zenswashbuckler">Zenswashbuckler</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>