The Château du Hohlandsbourg is a ruined castle Wintzenheim, near Colmar. The construction of the castle, on the order of the Provost of Colmar, Siegfried de Gundolsheim, dates from 1279. The site, 620 m above sea level, allowed for surveillance of Colmar and its region. In 1281, the townspeople of Colmar revolted and set fire to the castle with the help of the Bailiff, Otton d'Ochenstein.
The castle came under the control of the Ensisheims before being given in 1410 as a fiefdom to the Ribeaupierres, then Counts of Lupfen, who enlarged it. In the 16th century, the castle belonged to Lazarus von Schwendi, general of the Holy Roman Empire, who, it is said, brought Tokay vines from Hungary to Alsace. He enlarged and strengthened the castle.
With Alsace becoming French at the end of the Thirty Years' War, the castle welcomed troops who blew it up in 1637 to prevent it falling into the hands of an Austrian army.
Today Hohlandsbourg Castle offers a magnificent all-round panorama over the plain of Alsace and the Vosges Mountains. It is open to in summer season.
References:The Church of St Donatus name refers to Donatus of Zadar, who began construction on this church in the 9th century and ended it on the northeastern part of the Roman forum. It is the largest Pre-Romanesque building in Croatia.
The beginning of the building of the church was placed to the second half of the 8th century, and it is supposed to have been completed in the 9th century. The Zadar bishop and diplomat Donat (8th and 9th centuries) is credited with the building of the church. He led the representations of the Dalmatian cities to Constantinople and Charles the Great, which is why this church bears slight resemblance to Charlemagne's court chapels, especially the one in Aachen, and also to the Basilica of San Vitale in Ravenna. It belongs to the Pre-Romanesque architectural period.
The circular church, formerly domed, is 27 m high and is characterised by simplicity and technical primitivism.