Bucharest and the surroundings at the onset of World War I.
Military mapping authority of Austria-Hungary
<a href="//commons.wikimedia.org/wiki/File:Ploesti_-_44-45.jpg" title="File:Ploesti - 44-45.jpg">this</a> map and <a href="//commons.wikimedia.org/wiki/File:Bukarest_-_44-44.jpg" title="File:Bukarest - 44-44.jpg">this</a> map.