The New Fortress of Corfu is a Venetian fortress built on the hill of St. Mark in Corfu. The current buildings which exist within the fortress were built by the British during their rule of the island (1815–63).
In the aftermath of the first great Ottoman siege of Corfu in 1537, the Venetians developed plans to expand the fortifications of the city. Venetians built the New Fortress at the hill of St. Mark to further strengthen the defences of the outer city of Corfu and to act as the focal point of the new fortifications. The exact dating of the structure is not established but accounts vary between 1576 or 1577-1588, and 1572-1645.
The sea defences of the New Fortress were destroyed by the British when the British protectorate came to an end and Corfu was united with Greece in 1864. Under the same agreement, the Avrami and Vido island forts were also destroyed. When the latter fort was demolished, the explosion was so strong that it broke house windows on the Corfu side of the sea channel.
At the top of the castle there is a stone building which was used for defence and a brick building which in modern times functions as the headquarters of the Naval Station of Corfu. The Venetian fortifications were later expanded by the British and the French to help defend against a possible Turkish attack. Its fortifications included 700 pieces of artillery with range estimated as far as the Albanian coast.
References:Trenčín Castle is relatively large renovated castle, towering on a steep limestone cliff directly above the city of Trenčín. It is a dominant feature not only of Trenčín, but also of the entire Považie region. The castle is a national monument.
History of the castle cliff dates back to the Roman Empire, what is proved by the inscription on the castle cliff proclaiming the victory of Roman legion against Germans in the year 179.
Today’s castle was probably built on the hill-fort. The first proven building on the hill was the Great Moravian rotunda from the 9th century and later there was a stone residential tower, which served to protect the Kingdom of Hungary and the western border. In the late 13th century the castle became a property of Palatine Matúš Csák, who became Mr. of Váh and Tatras.
Matúš Csák of Trenčín built a tower, still known as Matthew’s, which is a dominant determinant of the whole building.