Hermann Castle (also Hermannsburg, Herman Castle, Narva Castle, or Narva fortress) was founded in 1256 by the Danes and the first stone castle was built in the beginning of the 14th century. The German Livonian Teutonic knights order purchased the castle on 29 August 1346 and for most of its history the castle was German Teutonic.
Although the exact age of Narva Castle and the town cause still arguments between historians, they agree on the sequence of events. Firstly, in about the 13th century, the Danes, who had conquered Northern Estonia, built a wooden border stronghold at the crossing of the Narova River and the old road. Under the protection of the stronghold, the earlier settlement developed into the town of Narva, which obtained the Lubeck town rights in the first half of the 14th century.
Following several conflicts with the Russians, the Danes started building a stone stronghold at the beginning of the 14th century. It was a small castellum-like building with 40-metre sides and a tower, a predecessor of the today's Herman Tower, at its north-western corner. At the beginning of the 14th century, a small forecourt was established at the north side of the stronghold and, in the middle of the century, a large forecourt was added to the west side, where citizens were allowed to hide in case of wars as the town of Narva was not surrounded by a wall during the Danish rule.
In 1347 the Danish king sold Northern Estonia, including Narva, to the Livonian Order, who rebuilt the building into a convent building according to their needs. The stronghold has for the most part preserved the ground plan with its massive wings and a courtyard in the middle. The Herman Tower was also completed at the time of the Order, necessitated by the establishment of Ivangorod Castle by the Russians to the opposite side of the Narva River in 1492. The Order surrounded the town with a wall, which unfortunately has not been preserved (in 1777 there came an order to pull it down).
The Narva Castle is one of the main attractions of the city. The Narva Castle is the most diverse and best preserved defence structure in Estonia. The area of the castle is 3.2 hectares, and the highest point is the Tall Hermann Tower (51 metres). Today you can visit the museum in the castle, were the displays explain the history of Narva and the castle. There are handicraft workshops in the northern courtyard, where you can try your hand at various techniques and handicrafts.
The Church of Saint Demetrius, or Hagios Demetrios, is the main sanctuary dedicated to Saint Demetrius, the patron saint of Thessaloniki. It is part of the site Palaeochristian and Byzantine Monuments of Thessaloniki on the list of World Heritage Sites by UNESCO since 1988.
The first church on the spot was constructed in the early 4th century AD, replacing a Roman bath. A century later, a prefect named Leontios replaced the small oratory with a larger, three-aisled basilica. Repeatedly gutted by fires, the church eventually was reconstructed as a five-aisled basilica in 629–634. This was the surviving form of the church much as it is today. The most important shrine in the city, it was probably larger than the local cathedral. The historic location of the latter is now unknown.
The church had an unusual shrine called the ciborium, a hexagonal, roofed structure at one side of the nave. It was made of or covered with silver. The structure had doors and inside was a couch or bed. Unusually, it did not hold any physical relics of the saint. The ciborium seems to have been a symbolic tomb. It was rebuilt at least once.
The basilica is famous for six extant mosaic panels, dated to the period between the latest reconstruction and the inauguration of the Byzantine Iconoclasm in 730. These mosaics depict St. Demetrius with officials responsible for the restoration of the church (called the founders, ktetors) and with children. An inscription below one of the images glorifies heaven for saving the people of Thessalonica from a pagan Slavic raid in 615.
Thessaloniki became part of the Ottoman Empire in 1430. About 60 years later, during the reign of Bayezid II, the church was converted into a mosque, known as the Kasımiye Camii after the local Ottoman mayor, Cezeri Kasım Pasha. The symbolic tomb however was kept open for Christian veneration. Other magnificent mosaics, recorded as covering the church interior, were lost either during the four centuries when it functioned as a mosque (1493–1912) or in the Great Thessaloniki Fire of 1917 that destroyed much of the city. It also destroyed the roof and upper walls of the church. Black-and-white photographs and good watercolour versions give an idea of the early Byzantine craftsmanship lost during the fire.
Following the Great Fire of 1917, it took decades to restore the church. Tombstones from the city"s Jewish cemetery - destroyed by the Greek and Nazi German authorities - were used as building materials in these restoration efforts in the 1940s. Archeological excavations conducted in the 1930s and 1940s revealed interesting artifacts that may be seen in a museum situated inside the church"s crypt. The excavations also uncovered the ruins of a Roman bath, where St. Demetrius was said to have been held prisoner and executed. A Roman well was also discovered. Scholars believe this is where soldiers dropped the body of St. Demetrius after his execution. After restoration, the church was reconsecrated in 1949.