The St. John’s (Jaani) church in Valga is one of the most beautiful churches in Estonia. The construction started in 1787, but it was not completed until 1816. The church represents Baroque and Classicism styles. It was built according to the design of architect Christoph Haberland and it is the only church in Estonia with an oval ground plan. The unique organ has been preserved in its original shape and it is the only instrument built by Friedrich Ladegast still left in Estonia.
Reference: Visit Estonia
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.