Tour Saint-Jacques

Loved by the Surrealists, this solitary Flamboyant Gothic belltower with its leering gargoyles is all that remains of St-Jacques-La-Boucherie church, built for the powerful Butchers' Guild in 1508-22. The statue of Blaise Pascal at the base commemorates his experiments on atmospheric pressure, carried out here in the 17th century. A weather station now crowns the 52m (171ft) tower.