Alaca Imaret Mosque or Ishak Pasha Mosque (literally the 'colourful mosque') was built by order of Ishak Pasha in 1484 or 1487. It consists of a mosque with an imaret (public charity kitchen). The mosque and imaret are not in use anymore. The mosque has a reverse T plan common to early Ottoman architecture, the prayer hall is covered by two large domes, it has a portico covered by five smaller domes. It had one minaret, which was destroyed after 1912, after Thessaloniki was liberated by the Greek Army and became part of the modern Greek state.
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.