The Nauvo Church was built probably between years 1430 and 1450 and it's dedicated to St. Olaf. The mural paintings were made in the 17th century. The most significant artefact in church is the crucifix from the beginning of 15th century. The oldest music instrument in Finland, organs called "Nauvon positiivi" (built probably in 1664), was originally in the Nauvo church. today it's preserved to the National Museum of Finland.
Castel del Monte, located in the municipality of Andria, rises on a rocky hill dominating the surrounding countryside of the Murgia region. A unique piece of medieval architecture, it was completed in 1240. The castle’s location, its perfect octagonal shape, as well as the mathematical and astronomical precision of its layout all reflect the broad education and cultural vision of its founder, Emperor Frederick II.
As a leader of modern humanism, the Germanic Emperor brought scholars together in his court from throughout the Mediterranean, combining Eastern and Western traditions. The castle’s unique design, an octagonal plan with octagonal towers at each angle, represents a search for perfection. Interior features reflect Eastern influences, such as the innovative hydraulic installation used by Frederick II for bathing in accord to the typical Arabic customs.
The site is of outstanding universal value in its formal perfection and its harmonious blending of cultural elements from northern Europe, the Muslim world and classical antiquity. Castel del Monte is a unique masterpiece of medieval architecture, reflecting the humanist ideas of its founder, Frederick II of Hohenstaufen.