Looming over Bari's cathedral is the huge Castello Svevo. The current building dates from the time of Holy Roman Emperor Frederick II (1194–1250), who rebuilt an existing Norman-Byzantine castle to his own exacting specifications. Designed more for power than beauty, it looks out beyond the cathedral to the small Porto Vecchio (Old Port). Inside, a haphazard collection of medieval Puglian art is frequently enlivened by changing exhibitions featuring local, national,
and international artists.