The Nové Hrady Castle was built in the first half of 13th century. It was damaged in 1573 by a gunpowder explosion and in 1590 by an earthquake. Complete demolition was considered, but only the ruins of the massive bergfried and the adjacent palace were demolished. The rest of the castle complex was repaired and newly fortified according to the design of the Italian architect Antonio Canevallo. The castle lost its function of the aristocratic residence in 1635 and in the following centuries it was used as a library, archive, administration and housing for officials. Today it is owned by the state. Since 2000, it has been open to the public and offers guided tours.
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.