Chiesa di San Pietro is one of the most remarkable Byzantine churches in Apulia. The square form church was built probably in the 9th-10th centuries and it was the basilica which was chosen as Ortohodox metropolis in 968. The church has beautiful Byzantine frescoes from the 10th-11th centuries.
House of the Blackheads (Melngalvju nams) is a building situated in the old town of Riga. The original building was erected during the first third of the 14th century for the Brotherhood of Blackheads, a guild for unmarried German merchants in Riga. Major works were done in the years 1580 and 1886, adding most of the ornaments.
The structure was bombed to a ruin by the Germans June 28, 1941 and the remains demolished by the Soviets in 1948. The current reconstruction was erected from 1995 to 1999. Today the House of Blackheads serves as a museum and sometimes concert hall.