St. George's Minster is the impressive and quite massive church at the historic heart of Dinkelsbühl. The core of the current structure was built in the 15th century - adding on to older buildings that had existed in this area.
The tower of the church was originally not planned to be the church tower at all - it was a free-standing structure to the west of the main building which had been built in the 12th century. However the ambitious plans for a tower at the northern end had to be put aside because of lack of money and the architects extended the church building to the old tower. The style of the main building is late Gothic.
The minster became popular with pilgrims in later centuries because of the highly-decorated altars inside the church. It is possible to climb the tower during weekend afternoons with good weather in the summer months.References:
First record of Kastelholma (or Kastelholm) castle is from the year 1388 in the contract of Queen Margaret I of Denmark, where a large portion of the inheritance of Bo Jonsson Grip was given to the queen. The heyday of the castle was in the 15th and 16th centuries when it was administrated by Danish and Swedish kings and stewards of the realms. Kastelhoma was expanded and enhanced several times.
In the end of 16th century castle was owned by the previous queen Catherine Jagellon (Stenbock), an enemy of the King of Sweden Eric XIV. King Eric conquered Kastelholma in 1599 and all defending officers were taken to Turku and executed. The castle was damaged under the siege and it took 30 years to renovate it.
In 1634 Åland was joined with the County of Åbo and Björneborg and Kastelholma lost its administrative status.