Ortenburg castle in Bautzen stands on the site of 7th century fort enlarged by Henry I in the 10th century. In the 15th century the castles was rebuilt in the late-Gothic style by Matthias Corvin, King of Hungary, following two devastating fires. The tower on the north wing still bears a relief representing the king. In 1698, at the height of the Baroque period, three Renaissance gables were added to the castle.
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.