Taking photographs after sunset using only natural (or artificial light) brings out features that are seldom seen during the day time. The photograph below is from Vilnius at the Gediminas castle tower.
Dating to the 13th century, the Gediminas castle was rebuilt in 1419 by Grand Duke Vytautas after the great fire of Vilnius. During the 1655 – 1661 Russian occupation the castle towers and defensive walls were completely ruined and only in 1930 was any attempt made to restore the castle. The castle towers over central Vilnius and is accessible by a short climb or by a funicular (which, when I was there, was out-of-order).
Exposure: 3 seconds, f/3.5 ISO200, Nikon D80.