Liechtenstein Castle is a castle near Maria Enzersdorf in Lower Austria bordering Vienna. The castle, originally built during the 12th century, was destroyed by the Ottomans in 1529 and 1683, and remained in ruins until 1884, when it was rebuilt.
Liechtenstein Castle is the origin of the name of the Liechtenstein family, the ruling house of the country of the same name, which owned the castle from at least 1140 until the 13th century and again from 1807 onwards.
Today, the castle is mainly known for the Nestroy Theatre Festival held annually during the summer months.
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.