Mansard roofs, sandstone turrets, wrought-iron trimmings and over-the-top balustrades: the French Second Empire wedding-cake exterior of the Town Hall (built 1868–89) is something to behold. Unless there's something on, you can explore the halls off the main entrance. The wood-lined concert hall has a humongous pipe organ with nearly 9000 pipes; it was once the largest in the world. It's used regularly for recitals, some of which are free.
