Jesus Church is one of the largest and most important Protestant churches in Poland. The construction of the Lutheran basilica was made possible with the assistance of Sweden's Charles XII, who forced Austrian Emperor Joseph I to provide right for Protestants. Late Austrian Baroque in style, Jesus Church was constructed between 1709-1710 and the bell tower was erected in 1750. In the first two decades of the church's existence, it was a significant center of pietism.
The church has a capacity of 6000 people (sitting on benches) and a lot of standing places if necessary. The Church also houses the Protestant Museum altogether with Tschammer Library which has about 23 000 books in its collection.
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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.