The oldest record of church in Halikko is dated back to the year 1352. The wooden church was replaced probably approximately 1440. Original, two-aisle church was dedicated to St. Birgit. During the Reformation old chalk paintings were overpainted and church was left to dilapidate. Too small and dicky church was renovated and expanded in 1799 and again in 1813-1815. The old sacristy, weapons room and the tomb of famous noble family Horn were dismantled then. New tombs for Horns and another famous noble family Armfelt were added to the church.
According the legend, Henrik Olafsson the Graf of Åminne manor financed the construction of the Halikko Church, the Pertteli Church and the Chapel of Salo to pay the sins of his family. His father-in-law had murdered his wife and the seen a vision in which Jesus said that he must pay his sins.
The Château Comtal (Count’s Castle) is a medieval castle within the Cité of Carcassonne, the largest city in Europe with its city walls still intact. The Château Comtal has a strong claim to be called a 'Cathar Castle'. When the Catholic Crusader army arrived in 1209 they first attacked Raymond-Roger Trencavel's castrum at Bèziers and then moved on to his main stronghold at Carcassonne.
The castle with rectangular shape is separated from the city by a deep ditch and defended by two barbicans. There are six towers curtain walls.
The castle was restored in 1853 by the architect Eugène Viollet-le-Duc. It was added to the UNESCO list of World Heritage Sites in 1997.