Hämeenlinna Church was built in 1798 as a rotunda modelled on the Pantheon in Rome. It is designed by Frenchman L. J. Desprez, the court architect of Sweden. The altar stood in the middle of the amphitheatre-shaped church, and the pulpit was above the sacristy door. Hämeenlinna church is one of the best samples of so-called Gustavian classism style in Finland.
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.