A map of the <a href="//commons.wikimedia.org/wiki/Bucharest_Metro" title="Bucharest Metro">Bucharest Metro</a>.
<a href="//commons.wikimedia.org/wiki/User:C21H22N2O2" title="User:C21H22N2O2">C21H22N2O2</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>