The true centre of the old town is the Place du Bourg-de-Four, that is considered the oldest square in the city. It has beautiful 16th, 17th and 18th century architecture. The famous flower fountain, from which you can even drink the water, dates back from the 18th century. The square has been used as a meeting place since forever. It used to be mainly traders doing business together, but now it's pleasant terraces that are even heated in winter. During summer in particular, there are many street performers. There're lots of nice restaurants serving great food. Around the square you'll find docks, footpaths by the lake, countless parks, crowded alleys in the old town and elegant shops that inspire you to take a stroll. One of the best kept old streets is the Grand-Rue, where Jean-Jacques Rousseau was born.