Masku Church

Nousiainen Church is a medieval stone church dating from the 1420s or 1430s. The church was originally designed to be two naves. However, the plans were changed during construction, and the end result is a church with three naves and cross vaults. The vaults are supported by simple square brick pillars. The vaults and pillars are decorated with simple paintings dating from the 1430s, discovered in 1936 under layers of lime paint. The church was renovated and restored at least in 1377, 1770, 1786, 1847, 1901, 1936 and 1967-69.

The church of Lemu is a medieval stone church dedicated to St. Olaf. It was probably built between 1460 and 1480. The present neoclassical wooden bell tower of the church, dating from 1812, is located on the north-eastern side of the church. The old bell tower, built in the 1570s, had fallen into ruin at the turn of the 18th century when plans for the present bell tower began to be drawn up. Next to the Lemu church is the homeland museum called Kemppien tupa. The museum is housed in a former parish warehouse built in 1858.

The church of Naantali was built in the 15th century, originally as a monastery church. The monastery closed in 1544 during the Protestant Reformation. During the reign of John III (1569-1592), the monastery resumed activity for a while, and his Catholic wife Catherine Jagellon called in new novices. The last nun died in 1591, and in 1608 King Charles IX (1604-1611) ordered the destruction of the monastery buildings, only the church was preserved.