Kassari chapel is a building with romantic appearance that is the only functioning thatched-roof stone church in Estonia. Reputedly it dates back to 18th century because on the inner wall of the chapel there is a year 1801 that is associated with big repair.
In the graveyard there are the graves of many famous people - the ancestors of the poets M. Under and D. Vaarandi; the actor Olev Eskola; familiar from V.Panso book "The Funny Person" Lepa Anna. Familiar from art, literature and folk tales the name of Villem Tamm, whom J. Köler used as a model for Christ when painting his work "Come to me" in Kaarli church.