The Great Tower Neuwerk is the most significant building of the Neuwerk island, belonging to Hamburg. This former beacon, watchtower and lighthouse is also the oldest building in Hamburg and oldest secular building on the German coast.
The construction was started in 1300. It was completed after ten years in 1310. The style matches the common norman tower type of the time. Contrary to some literature, the tower was built in this form from the beginning. The fire in the 1360s destroyed most of the wooden elements and it had to undergo major reconstruction.
The original roof was made of lead, and was replaced by copper in 1474. This was again replaced in 1558 by a tiled roof and by a new copper roof following that. The copper was then used for military purposes in 1916 reconstructed later.
The original purpose was to host troops to defend the ships entering and leaving the Elbe from sea and beach pirates. The tower was also refuge for the farmers on the island during storm surges and survivors of shipwrecks over the centuries.
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.