Construction of the first church in Lemi was started in 1668, but it was destroyed by arson already in 1670. The next one was completed in 1688 and used for one hundred years. The present one was built in 1786 by the local church builder Juhana Salonen. The wooden crusiform-shaped church is one of the most valuable wooden churches in the Europe.
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.