Saint Nicholas Church is mentioned in document for the first time in 1387. In 1901-39 the Church of St. Nicholas was the only church in Vilnius where the mass was held in Lithuanian. By the same token it was a centre of Lithuanian culture (its famous dean Kristupas Čibiras was killed in 1942 during a bombing raid).
After the World War II, the Cathedral of Vilnius was closed and the Curia of the Archdiocese of Vilnius was moved to the St. Nicholas Parish building and the Church of St. Nicholas in fact performed the functions of a cathedral.
During the Soviet occupation a statue of the patron of Vilnius, St. Christopher, was erected in the church orchard (sculptor Antanas Kmieliauskas, 1959); it was an obvious act of resistance, as the city's coat-of-arms with St. Christopher's figure was banned at that time.
Archaeologists believe that the original church survived till the present day. Externally, the church represents the Brick Gothic style, while its interior has been renovated several times. The church belfry was built in the 17th century in the Baroque style. Its façade is flanked by two stocky buttresses with cut-off tops. The triangular pediment with niches has been recently renovated accentuating its original Gothic character. In the interior, four elegant octahedral pillars support web and star vaults. The high altar holds a painting of St. Nicholas with a silver setting from the 16th century. The church is adorned with two sculptures: a polychrome statue of St. Louis from the Gothic period, and Vytautas' bronze bust erected in 1930 (sculptor Rapolas Jakimavičius).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.