All Saints (Alla Helgona) Church was built in the late 1200s, but during the Duke Karl's time (1590-1618) it went through a radical transformation. At the restoration in 1909 the church received its small ridge turrets, which is a replica of the tower on Erik Dahlberg´s engravings of Nyköping. In 1665 the church was ravaged by fire. At the recent restoration in 1959-1960 were the pillars restored in to original condition, limestone from the island of Öland.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.