Adelsö, Sweden
ca. 750 AD
Bornholm, Denmark
750 AD
Kleindannewerk, Germany
500 AD
Eastern Settlement, Greenland
985 AD
Ekerö, Sweden
ca. 100-1520 AD
Kerteminde, Denmark
c. 925 AD
Borre, Norway
600-900 AD
Borgsum, Germany
9-10th century AD
Qassiarsuk, Greenland
10th century
Tønsberg, Norway
834 AD
Sylt, Germany
0 AD
Veliky Novgorod, Russia
9th century AD
Nøtterøy, Norway
500-1000 AD
Logstor, Denmark
10th century
Mörbylånga, Sweden
800-1000 AD
Kvitsøy, Norway
800 - 1050 AD
Lejre, Denmark
550 - 1000 AD
Morbylånga, Sweden
1000 BC-1000 AD
Mörbylånga, Öland, Sweden
ca. 950-1000 AD
Suðuroyar, Faroe Islands
970 AD
The Château du Haut-Koenigsbourg is situated in a strategic area on a rocky spur overlooking the Upper Rhine Plain, it was used by successive powers from the Middle Ages until the Thirty Years' War when it was abandoned. From 1900 to 1908 it was rebuilt at the behest of the German kaiser Wilhelm II. Today it is a major tourist site, attracting more than 500,000 visitors a year.
The first records of a castle built by the Hohenstaufens date back to 1147. The fortress changed its name to Koenigsburg (royal castle) around 1157. The castle was handed over to the Tiersteins by the Habsburgs following its destruction in 1462. They rebuilt and enlarged it, installing a defensive system designed to withstand artillery fire.
The fortification work accomplished over the 15th century did not suffice to keep the Swedish artillery at bay during the Thirty Years War, and the defences were overrun.