Lübeck is a historic city in northern Germany, known for its well-preserved medieval architecture. It was founded in 1143 and became a major trading center in the Hanseatic League, which was a powerful economic alliance of merchant cities in the late Middle Ages. The city is famous for its iconic Holstentor, a large brick gate that symbolizes Lübeck's rich history. The old town of Lübeck is a UNESCO World Heritage Site, featuring narrow streets and beautiful buildings, including the St. Mary's Church and the Lübeck Cathedral. The city is also renowned for its marzipan, a sweet treat made from almonds and sugar, which has been produced there for centuries.