The Spanish city of Almería suffered up to 52 bombings from air and sea, with a total of 754 bombs dropped during the Spanish Civil War. This led to the decision to create a system of underground shelters for the protection of approximately 40,000 civilians. These shelters measure more than 4.5 km long, and they are equipped with a surgery room and a food storage room. They were designed by the local architect Guillermo Langle Rubio, being today the most important and better preserved shelters in all Europe. These refuges have stood the most important attack in all Almería's history, the Bombardment of Almería, by the nazis in 1937.
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.