the following text originates from:
http://www.labyrinthos.net/estonia1.htm

Estonia has at least five, and maybe as many as nine, historic stone labyrinths documented. They are all situated on islands along the coast, in those parts of Estonia that were colonized by Swedish speaking farmers and fishers during the mediaeval. This pattern of distribution can be compared with Finland where most stone labyrinths are also found along the coast in areas where Swedish speaking farmers and fishers settled in the early mediaeval. The most reasonable interpretation of this pattern is that the idea of building and using stone labyrinths was part of the cultural heritage brought in from the west by Swedish settlers.

Karl von Löwis of Menar mentioned an Estonian labyrinth situated at Tahkuna, on the northern tip of Dagö, in 1912. In 1925 A.M.Tallgren mentioned two labyrinths: the one at Tahkuna and another on the little island of Viirlaid. Peter Mey wrote an article in the Estonian newspaper Päevaleht in 1931, where he mentions that there was a partly preserved labyrinth on the island of Aegna near the Estonian capital, Tallinn.

 Mey also mentions that there were labyrinths on the islands of Aski and Prangli in the same area.........................

you can read the rest of the text from:
http://www.labyrinthos.net/estonia1.htm