Sail and Bike Croatia/Dubrovnik

Dubrovnik city wall and fortification
The city of Dubrovnik has the best preserved defensive medieval fortification system in Europe. About two kilometers long, it surrounds the old town of Dubrovnik from all sides and has become a landmark not only of the old town, it has been a UNESCO World Heritage Site since 1979.
The importance of the defensive system is only evident from the list of numerous sieges of the city:
Fifteen-month siege by the Saracens 866-867
Sieged by Venice 948
Siege by Venice and the Knight's Army of the Fourth Crusade 1205
Devastation of Dalmatia by the Mongols, Dubrovnik survived the siege
Russian-Montenegrin siege 1806
Siege by the Austro-Hungarian troops 1814
Siege by the Yugoslav People's Army during the fighting for Dubrovnik 1991-1992