Begun at the end of the 14th century, the construction of the Saint-Nizier church was not completed until the 19th century. Entirely made of limestone blocks, this building, 74 m long and 28 m wide and 29 m high, is now classified as a Historic Monument. It reveals an architecture unique to Lyon, with two asymmetrical towers; the first dates from the 15th century with a red tile roof and a clock, while the second was built in the 19th century with a spire carved in limestone.