The estate of Võisiku was first mentioned in 1558. It has belonged to the von Bocks, von Manteuffels, von Samson-Himmelstjernas and von zur Mühlens. The one-storey stone-made main building was completed in the 1750s. It now belongs to the complex of a local nursing home. The family cemetery of the von Bocks is located 1500 meters to the west.
Reference: Estonian Manors
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.