The Zavala Monastery is a Serbian Orthodox monastery located in the village of Zavala on the southwestern edge of Popovo Polje, in Ravno. The monastery is dedicated to the Presentation of Mary. The northern wall of the monastery's church is situated within a cave. This monastery is also known as a place where Basil of Ostrog entered into monasticism.
Along with Žitomislić and Tvrdoš, Zavala is one of the most important monasteries in East Herzegovina. The first written record of the monastery dates back to sixteenth century. During the Second World War, the monastery suffered major damage, and in the Bosnian War it was further damaged and abandoned.
After the war the monastery was restored, and together with Zavala village with its old architecture and stone masonry, and Vjetrenica cave constitute cultural-historic, architectural and natural assemble, protected by KONS as an important national monument of Bosnia and Herzegovina. Because of its importance as national heritage, as well as tourist and ambiental attraction, site is also placed on the UNESCO Tentative list for inscription into UNESCO World Heritage Site list.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.