Surrounded by two arms of the River Ill, the Grande
Ile (Big Island) is the historic centre of the Alsatian capital. It has
an outstanding complex of monuments within a fairly small area. The
cathedral, the four ancient churches and the Palais Rohan – former
residence of the prince-bishops – far from appearing as isolated
monuments, form a district that is characteristic of a medieval town and
illustrates Strasbourg's evolution from the 15th to the 18th century.