Carbisdale Castle was built in 1905-1917 for the Duchess of Sutherland on a hill across the Kyle of Sutherland. The castle has 365 windows, and the clock-tower only has clocks on three sides: the side facing Sutherland does not have a clock. There is a secret door below the Great Staircase which could be opened by rotating one of the statues. This mechanism is no longer in use. Until its closure, the castle had a large collection of art, with some pieces dating back to the year 1680, as well as the Italian marble statues.
Colonel Theodore Salvesen, a wealthy Scottish businessman of Norwegian extraction, bought the castle in 1933. He provided the castle as a safe refuge for King Haakon VII of Norway and Crown Prince Olav, who would later become King Olav V, during the Nazi occupation of Norway in World War II. During that time the castle was also used to hold important meetings. King Haakon VII made an agreement at the Carbisdale Conference on 22 June 1941, that the Russian forces, should they enter Norwegian territory, would not stay there after the war. Three years later, on 25 October 1944, the Red Army entered Norway and captured thirty towns, but later withdrew according to the terms of the agreement. After the Colonel died his son, Captain Harold Salvesen, inherited the castle and gave its contents and estate to the Scottish Youth Hostels Association. Carbisdale Castle Youth Hostel opened to members on 2 June 1945.References:
The city walls of Avila were built in the 11th century to protect the citizens from the Moors. They have been well maintained throughout the centuries and are now a major tourist attraction as well as a UNESCO World Heritage Site. Visitors can walk around about half of the length of the walls.
The layout of the city is an even quadrilateral with a perimeter of 2,516 m. Its walls, which consist in part of stones already used in earlier constructions, have an average thickness of 3 m. Access to the city is afforded by nine gates of different periods; twin 20 m high towers, linked by a semi-circular arch, flank the oldest ones, Puerta de San Vicente and Puerta del Alcázar.