The Church of the Holy Cross is a medieval Gothic style building with a peculiar shaped tower. Construction started in the 13th century and was completed in the first half of the 15th century. The church was originally built with a round tower, however during the first half of 17th century half of the top of the tower collapsed.
There are two tombs from the 15th century and a pulpit from the 17th century inside the church.
Reference: 7is7.com
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.