Exploring the History of Northern Poland

St. Mary's Church (Bazylika Mariacka) is the largest brick church in the world. According to tradition, as early as 1243 a wooden Church of the Assumption existed at this site, built by Prince Swantopolk II. The foundation stone for the new brick church was placed on on 25 March 1343. At first a six-span bay basilica with a low turret was built, erected from 1343 to 1360. Parts of the pillars and lower levels of the turret have been preserved from this building.

The Castle of the Teutonic Order in Malbork (Ordensburg Marienburg), completed in 1406, is the largest castle in the world by surface area, and the largest brick building in Europe. The castle is a classic example of a medieval fortress. UNESCO designated the 'Castle of the Teutonic Order in Malbork' and the Malbork Castle Museum as the World Heritage Site in 1997.

Church of St. John the Baptist and St. John the Evangelist, since 1935 Minor Basilica, since 1992 the Cathedral of Toruń Diocese, is former main parish church of Old Town of Toruń. One of three Gothic churches of the town, built from brick, an aisled hall with a monumental west tower. The first church from the 13th century was a small hall without aisles and with polygonal presbytery. This was replaced by aisled hall church in the first half of the 14th century, which has been rebuilt many times and extended until it reached its present form at the end of 15th century. Interior is richly decorated and furnished. The earliest painted decorations in the presbytery date back to the 14th century and depict the Crucifixion and the Last Judgement. One of the side chapels is connected with Nicolaus Copernicus. There is a 13th-century baptismal font, supposedly used for baptizing the astronomer, 16th-century epitaph to him, and 18th-century monument. At the tower hangs Tuba Dei, the third-largest bell in Poland, cast in 1500.

The 16th-century Renaissance building was once home to the office of the Polish astronomer and city councillor Johann Hevelius, whose statue can be found in the park in front of the building. The former headquarters of the Council of Gdansk, the Old Town Hall served as the headquarters of the Soviet Army during the dying days of WWII, probably because it was practically the only building left standing in the city at the time. Today the building is open to the public and has become the focus of much creativity. There"s also a cellar restaurant, and a good bookshop on the ground floor.

The Archcathedral Basilica of the Assumption of the Blessed Virgin Mary and Saint Andrew in Frombork was constructed during 1329-1388. The astronomer and mathematician Nicolaus Copernicus worked there as a canon (1512–16 and 1522–43). He wrote his epochal work, De revolutionibus orbium cœlestium in Frombork. Shortly after its 1543 publication, Copernicus died there and was buried in the cathedral where his grave was thought to have been found by archaeologists in 2005. This was subsequently confirmed in November 2008 by the publication of the results of DNA tests on fragments of bone and hair found on the skeleton; hair that matched two strands of hair which belonged to Copernicus and are currently located in Uppsala University.

Kwidzyn contains the partially ruined 14th century Brick Gothic Ordensburg castle of the Teutonic Order, namely the Bishops of Pomesania within the Order. Connected to the castle to the east is a large cathedral (built 1343-1384) containing the tombs of the bishops as well those of three Grand Masters of the Teutonic Knights.

Westerplatte is a long peninsula at the entrance to the harbour. When Gdańsk became a free city after WWI, Poland was permitted to maintain a post at this location, at the tip of the port zone. It served both trading and military purposes and had a garrison to protect it. WWII broke out here at dawn on 1 September 1939, when the German battleship Schleswig-Holstein began shelling the Polish guard post. The garrison, which numbered just 182 men, held out for seven days before surrendering.