Balduinstein Castle was built in 1319 by archbishop of Trier. Later it was owned by Staffel family from 1335 to 1683. After Niederburg castle was completed Balduinstein started to lost its status. In 1665 it was demolished and today it lies in ruins.
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.