The Old Synagogue in Dubrovnik is the oldest Sefardic synagogue still in use today in the world and the second oldest synagogue in Europe. It is said to have been established in 1352, but gained legal status in the city in 1408. Owned by the local Jewish community, the main floor still functions as a place of worship for Holy days and special occasions, but is now mainly a city museum which hosts numerous Jewish ritual items and centuries-old artifacts.
Located in one of the many tiny streets of the Old Town of Dubrovnik, it is connected to a neighboring building which has long been owned by the Tolentino family, who have been caretakers of the synagogue for centuries. The internal layout is different from other European synagogues and has gone numerous refurbishments throughout the centuries, and has a mixture of designs from different eras. The building has sustained damage several times, with the great earthquake in 1667, World War II, and the Croatian War of Independence in the 1990s. The damage has since been repaired as closely as possible to its original design.
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.