Just because you’ve seen Bari above ground doesn’t mean you’ve seen all of it. It’s worth visiting underground Bari as well. The tour begins near the Swabian Castle, goes beneath the Cathedral, and ends at Palazzo Simi, which houses Bari’s archaeological center. The walk is easy and guided by professional tour guides. Along the way, you’ll discover the city’s pre-Roman history and even a Bronze Age dwelling hut! It’s a fascinating tour.