Henneburg Castle lies on a hill on the right bank of the Main River in the town of Stadtprozelten. Schenken von Klingenberg family built it as a border fortification around 1200. It was the residence of the Teutonic Order for almost 200 years and last served as the official residence of the noble Mainz Amtskeller officials.
It was deserted in the 16th century andfell into disrepair over time. The castle grounds are broken down into the upper castle, consisting of a fortification and main castle, as well as the outdoor grounds with moat and rampart and the defensive wall on the Main river side. The fortifications surrounding the upper castle, several castle gates, seven wall towers or their remains, both Great Hall ruins, the large and small keep and the roughly 150 metre long underground wall-walk accessible through exits in the wall towers, which links the south-west gateway to the northern part of the castle remain intact.
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.