Dome observatory of the Basilique du Sacré Cœur de Montmartre, Paris, France.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/22539273@N00">Guilhem Vellut</a> from Paris, France
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/o_0/34072048022/">Skyscrapers @ La Défense @ Observatory @ Dome @ Basilique du Sacré Cœur de Montmartre @ Paris</a>