The museum of Kihnu was established in 1974 into the old schoolhouse. Expositions are divided between four rooms. Two of them are dedicated to the everyday life of the island through centuries: tools, clothes, handicrafts, furniture. The other two are dedicated to the local representatives of naïve art and to other famous men from Kihnu: Theodor Saar, a researcher in the studies of local lore; Enn Uuetoa, a captain and Peeter Rooslaid, a silversmith. All in all the funds of the museum include 700 items. The museum has also a collection of paintings by naivist painters of Kihnu origin and many works by the most famous painter Jaan Oad.
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.