St. Hedwig's Cathedral is the seat of the archbishop of Berlin. It was built in the 18th century as the first Catholic church in Prussia after the Protestant Reformation by permission of King Frederick II. The intention of Frederick was to offer the numerous Catholic immigrants who had arrived in Berlin, especially those from Upper Silesia, a place of worship. The church was therefore dedicated to the patron of Silesia and Brandenburg, Saint Hedwig of Andechs. The building was designed by Georg Wenzeslaus von Knobelsdorff modeled after the Pantheon in Rome and construction started in 1747, interrupted and delayed several times due to economic problems. It was not opened until November 1, 1773 when the king's friend, Ignacy Krasicki, then Bishop of Warmia (later Archbishop of Gniezno), officiated at the cathedral's consecration.
After the Kristallnacht pogroms that took place over the night of 9–10 November 1938, Bernhard Lichtenberg, a canon of the cathedral chapter of St Hedwig since 1931, prayed publicly for Jews in the evening prayer following. Lichtenberg was later jailed by the Nazis and died on the way to the concentration camp at Dachau. In 1965 Lichtenberg's remains were transferred to the crypt at St. Hedwig's.
The cathedral burned down completely in 1943 during air raids on Berlin and was reconstructed from 1952 up to 1963.
Sirmione castle was built near the end of the 12th century as part of a defensive network surrounding Verona. The castle was maintained and extended first as part of the Veronese protection against their rivals in Milan and later under the control of the Venetian inland empire. The massive fortress is totally surrounded by water and has an inner porch which houses a Roman and Medieval lapidary. From the drawbridge, a staircase leads to the walkways above the walls, providing a marvellous view of the harbour that once sheltered the Scaliger fleet. The doors were fitted with a variety of locking systems, including a drawbridge for horses, carriages and pedestrians, a metal grate and, more recently, double hinged doors. Venice conquered Sirmione in 1405, immediately adopting provisions to render the fortress even more secure, fortifying its outer walls and widening the harbour.
Thanks to its strategical geographical location as a border outpost, Sirmione became a crucial defence and control garrison for the ruling nobles, retaining this function until the 16th century, when its role was taken up by Peschiera del Garda.