Jajce

From the Walled city of Jajce entry in Wikipedia:

Jajce citadel is the focal point as part of the Walled city of Jajce. It is the first to be built, on the top of the hill called Hum, at the end of the 13^th and beginning of the 14^th century as the fortress for Bosnian Grand Duke, Hrvoje Vukčić. It was surrounded by a small settlement on the eastern slopes, as it is today. It was repaired, rebuilt and enlarged many times since.

Today, the citadel consists of a main portal, decorated with the Coat of Arms of the royal Kotromanić dynasty, two large bastions, and inside a gun-powder tower. The walls are traversable with a path along the entire length, connecting Great Southern Bastion with the Great Northern Bastion, constructed on the diagonally opposite corners.

All pictures are © Dr. Günther Eichhorn, unless otherwise noted.