Haydar Pasha Mosque, the former church of St. Catherine, was built in the 14th century and it follows the southern France architectural style. The church is an elegant building comprised of a central space covered by two groin vaults. It also has an altar which ends with a three sided apse. On the apse’s northeastern side there is a two-storey building with groin vaults. On the apse’s southwestern side there is a small circular tower with a staircase. This tower has been turned into the mosque’s minaret. Of special interest are the building’s three-sided support pillars that are interrupted by oblong windows.
Three entrances lead to the church’s interior. The largest entrance is located at the centre of the west wall and the other two in the west part of the north and south wall. All three entrances are decorated with rich relief decoration and there is a round window (rosette) above the west entrance.
With the island’s conquest by the Ottomans this church was turned into a mosque and named ‘Haidar Pasha mosque’.References:
Frösöstenen is the northern-most raised runestone in the world and Jämtland's only runestone. It originally stood at the tip of ferry terminal on the sound between the island of Frösön and Östersund. The stone dates to between 1030 and 1050. It has now been relocated to the lawn in front of the local county seat due to the construction of a new bridge, between 1969 and 1971, on the original site.
Frösö runestone inscription means: Austmaðr, Guðfastr's son, had this stone raised and this bridge built and Christianized Jämtland. Ásbjörn built the bridge. Trjónn and Steinn carved these runes.