Side view of truss construction of the Old Sava bridge in Belgrade, Serbia.
<a href="//commons.wikimedia.org/wiki/User:%D0%9C%D0%B8%D1%85%D0%B0%D1%98%D0%BB%D0%BE_%D0%90%D0%BD%D1%92%D0%B5%D0%BB%D0%BA%D0%BE%D0%B2%D0%B8%D1%9B" title="User:Михајло Анђелковић">Михајло Анђелковић</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>