Heraclea was an ancient city of Magna Graecia. The ruins of the city are located in the modern comune of Policoro in Basilicata. It was a Greek colony, but founded at a period considerably later than most of the other Greek cities in this part of Italy. The foundation of the city is placed by Diodorus in 432 BCE. It became famous as the site of the first major battle of the Pyrrhic War in 280 BCE in which king Pyrrhus of Epirus defeated a Roman army on the head of a coalition of Southern Italian Greek city states.
Visby Cathedral (also known as St. Mary’s Church) is the only survived medieval church in Visby. It was originally built for German merchants and inaugurated in 1225. Around the year 1350 the church was enlarged and converted into a basilica. The two-storey magazine was also added then above the nave as a warehouse for merchants.
Following the Reformation, the church was transformed into a parish church for the town of Visby. All other churches were abandoned. Shortly after the Reformation, in 1572, Gotland was made into its own Diocese, and the church designated its cathedral.
There is not much left of the original interior. The font is made of local red marble in the 13th century. The pulpit was made in Lübeck in 1684. There are 400 graves under the church floor.