a point of view under the "iron-lace" roof of the gloriette of the Jardin des Plantes in Paris, one of the most ancient full metallic building in the world (1788)
<a href="//commons.wikimedia.org/wiki/User:Jebulon" title="User:Jebulon">Jebulon</a>
<span class="int-own-work" lang="en">Own work</span>