The Burgkirche ('castle church') is one of the largest and most imposing fortified churches in western Germany. The church is surrounded by a cemetery, which is surrounded by walls. The Romanesque tower of the church with Gothic battlements and turrets is the oldest part of the church, which was built in several phases in the late Gothic period. The restored stained glass windows and paintings in vaults - both from the 15th century - are worth of seeing. The church served as a graveyard of local nobility and has lots of interesting tombs.
References: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.