Kaliakra is a long and narrow headland in the Southern Dobruja region of the northern Bulgarian Black Sea Coast, located 12 km east of Kavarna and 60 km northeast of Varna. The coast is steep with vertical cliffs reaching 70 m down to the sea.
In 4th century BC a settlement called Tirrisis was founded bearing the name of a local Thracian tribe. In Roman times the fortress rapidly grew – lots of public buildings and facilities were built. There were plumbing system, churches, public baths (Roman thermes), fortification walls most of which can still be seen today. The cape became a strong Bulgarian fortress and flourished in the second half of the 14th century as a capital of the Dobrotitsa dukedom. It was a powerful medieval town minting its own coins. The fortress declined when it was conquered by The Ottoman Empire.
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.