Gothic Church of St. Catherine was built between 1310-1370 by the Teutonic Knights. In the years 1554-1598 it was used by Lutherans. After damage in 1631 and 1648 was renewed in the 2nd half of the 17th century. Three-nave hall church with square-closed chancel and the west facade with tower from the 15th century. Inside there are 15th-century starlike vaults, fragments of wall murals: Gothic, Renaissance from about 1582, and the Baroque of the turn of the 18th century. Gothic sculptures include 12 apostles at the pillars of the aisle, the crucifix dates from the late 1500s and group of the Crucifixion from the beginning of the 16th century. Renaissance stalls date from 1583.
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.