the Historical white tower of Thessaloniki GREECE

History
The White Tower was built in the fifteenth century after the fall of Thessaloniki to the Ottomans in 1430. At its location there had been an older tower belonging to Thessaloniki’s Byzantine fortifications, where the eastern wall met the sea wall. The Tower was the eastern end of the sea wall; there was another at the western end, and a third in between.

Over the years, it was referred to by various names: the Lion Tower in the sixteenth century, the Tower of Kalamaria in the eighteenth, while in the nineteenth century we find it with two names, depending on its use: the Tower of the Janissaries when the garrison of Janissaries was stationed there, and the Tower of Blood (Kanle Kule) when it became a prison and place of execution for convicts. In 1880, in his book on the city’s monuments the historian Mihail Xatzi Ioannou called it the Bastille of Thessaloniki, where those condemned to death were slaughtered on its terrace and their blood dyed its walls red, as a cannon shot from the western part of the city signified that the death sentence had been carried out. In 1883, on orders of the Sultan Abdul Hamid II, the Tower was painted white and given the name “White Tower” (Beyaz Kule). We are in the second half of the nineteenth century, an era when the winds of reform were blowing in the Ottoman Empire in the wake of pressure by England, and the Tower with its “bloody” name was not appropriate to the empire’s new character. It was a convict, Nathan Guiledi, who whitewashed the Tower in exchange for his freedom. It has remained with its current name since then. In time it became the symbol of Thessaloniki, since from 1911 it stood by itself on the seacoast following the demolition of the sea and eastern walls and its surrounding wall.

After the city’s liberation in 1912 and its incorporation into the Greek state, the Tower had various uses. During World War I, one floor was used to store antiquities from the excavations done by the archaeological service of the Armée d’Orient. The city’s air defense, Aristotle University’s meteorology laboratory, and Sea Scout groups have all been hosted in its spaces.

In 1983, the Tower was given to the Ministry of Culture.

Architecture

Architecture
The White Tower is circular, with a height of 33.90 meters and a diameter of 21.70 meters. It consists of a ground (entrance) floor and six upper stories. It is built of stone, plaster, and partially of brick the battlements, the roof over the entrance and the ground floor and the staircase vault are built exclusively of brick.

Apart from the ground floor and the sixth floor, which consist only of a circular space, the other five floors were formed with a circular space in the center (diameter 8.50 m.) and small rooms around their perimeter which communicate with the main space either directly or indirectly through low openings.

From an architectural standpoint, the Tower’s construction consists of two cylinders, an outer and an inner one. The outer cylinder rises as far as the fifth story; the inner cylinder is one story taller and thus a terrace is formed on the exterior that offers an exceptionally fine view of the city and Mt. Olympus. Between the two cylinders was a built spiral staircase composed of 92 steps. Forty windows permit daylight to illuminate the Tower’s interior.

Until the early twentieth century, the Tower was surrounded by a low octagonal surrounding wall, with small octagonal towers at three of its corners. The wall, probably constructed in 1535/36, was demolished in 1911.
Links for info http://www.lpth.gr/history-weg-74399.html