St. Eusebius church is named after the 4th-century saint Eusebius, Bishop of Vercelli. On the site of the present building initially stood a church dedicated to St. Martinus but after some relics of St. Eusebius arrived in the town during the early part of the 15th century, it was decided to build a new church dedicated to the saint at the old site. This new structure gradually replaced the old building over the next century, commencing when Arnold, Duke of Egmond laid the first stone in 1452.
The church was extensively damaged during the Second World War following Operation Market Garden in 1944. When the battle over the bridge that crosses the Rhine occurred, between paratroopers under the command of British Lieutenant-Colonel John Dutton Frost and the Germans, the church was completely burnt out. Later the tower, weakened by the fire, collapsed entirely.
Following the war the church was restored between 1946 and 1961. It is no longer used for religious services but rather is a tourist attraction, specifically commemorating the bravery of the paratroopers of the Allied forces who attempted to isolate the Germans by capturing the bridge across the river Nederrijn.
In 1994 the municipality of Arnhem commissioned an elevator to be placed in the church tower. Visitors can pay a small fee and ride up the elevator past all of the array of bell and into the loft of the church, from where tourist binoculars or the naked eye can be used to survey a 360 degree view of the surrounding city.
Visitors are also able to enter the crypt below the building. This part of the building has only very dim light in a central part. By carefully exploring a number of darkened cavernous areas, most of which are either barred as if being a part of old gaol cells, or in some cases as clearly exhumed shallow graves, the visitor can find ancient human bones which have been left in the state of their burial or death.
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.