Seen across the river Nogat on a clear day, Malbork looks almost too large to be real. It is the biggest brick castle in the world by area, built by the Teutonic Knights from the late thirteenth century and made their capital in 1309, when the Grand Master moved here from Venice. They called it Marienburg, in honour of the Virgin, and it served as the fortress, monastery and administrative headquarters of a military state that stretched along the Baltic. The brick walls rise in layer on layer, with a high castle, a middle castle and a lower castle, protected by moats, towers and gates, and it was more of a small city than a single building.
The order's power ended in the fifteenth century after defeat by Poland and Lithuania, and the castle passed to the Polish crown. Prussia took it over in the eighteenth century, and in the nineteenth it was restored with great romantic zeal, then badly damaged in the fighting of 1945. Careful reconstruction has made it whole again, and it earned a World Heritage listing in 1997. Inside, the vaulted halls and the great refectory are impressive in a plain and heavy way, and the museum holds amber and arms. Allow at least half a day, and bring an audio guide if the crowds are heavy in summer.
The countryside around Malbork is the Żuławy, the delta of the Vistula, a flat land of polders, dikes and drainage channels that lies at or below sea level in places. Dutch Mennonite settlers drained it in the sixteenth century, and the farms and the remains of arcaded houses still show their influence. Riding here is easy and fast, with long straight roads under a huge sky, but a strong wind off the Baltic can push a bike around, and in autumn and winter fog and early darkness are a problem. Watch for tractors and cyclists on narrow lanes.
Malbork is a town of nearly forty thousand people and has fuel, food and shops, and the castle is a short walk from the station and the old centre. The riverside gives good views back to the walls, and a bench by the Nogat at sunset, with the red brick glowing, is the best place to end the visit. Gdańsk is about fifty kilometres to the north, and Elbląg and the Vistula Lagoon lie to the east.