The old city hall, together with its bell tower, forms the landmark of the old city. This building, originally built in the 14th century with a Gothic bell tower, was built on the second floor of the 15th century with a chapel and the office of the councillor. In 1733, the fire broke out and the tower was transformed into the present Baroque style. Another building was added to it, but it still retained some parts of different periods and styles. The first floor of the building has been established as the Pressburg Museum since 1868 to show the history of the city and the city hall. The Old City Hall was built in 1421 and opened as a Municipal Museum in 1868. Behind the old city hall was the residence of the Archbishop of Hungary, and later incorporated into the city hall. It witnessed an important event in European history, Napoleon and the Holy Roman Emperor signed the "Plessberg Peace Treaty" here in 1805, declaring the end of the Holy Roman Empire. There is an old Roland fountain in front of the city hall.