Castle
Gjirokastra Castle
Gjirokastra's eerie hilltop castle is one of the biggest in the Balkans. There's been a fortress here since the 12th century, although much of what can be seen today dates to the early 19th century. The castle remains somewhat infamous due to its use as a prison under the communists. Inside there's a collection of armoury, two good museums, plenty of crumbling ruins to scramble around, and superb views over the valley.