The cathedral of Girona, which is dedicated to Saint Mary, is one of the city's most representative landmarks. Strategically located at the centre of the Old Town, which is known as the Força Vella, it coincides with the urban layout of Roman Girona (Gerunda), from which it's still possible to see the remains of a wall in the modern-day square. The cathedral was built during various eras and periods of differing architectural styles, mainly Romanesque and Gothic. During the Muslim occupation of the area, between 715 and 785 AD, the cathedral was converted into a mosque. Its greatest feature is the Gothic nave, which is the largest in the world; at 22.98m it's just a little smaller than the basilica of Saint Peter's in the Vatican, which measures 25m. And to finish, an interesting fact - in the cathedral you'll find a unique gargoyle with a human figure: the Stone Witch.