Andělská Hora, originally called Engelsburg, is a castle above the village of Andělská Hora, about 7 kilometres southeast of Karlovy Vary. The ruins of the castle stands upon a rock overlooking the village of Andělská Hora which lies just below. It was founded at the turn of the 14th to the 15th century by Boreš z Rýznburk, a noblemen from the Rýznburk family, as protection for their estates. The castle was destroyed by fire during the Thirty Years' War and abandoned in the 17th century.
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.