The Cathedral of Ávila has Romanesque and Gothic architectural traditions. It was planned as a cathedral-fortress, its apse being one of the turrets of the city walls. It is surrounded by a number of houses or palaces.
It is not known exactly when the construction of the Cathedral began, there being two theories. One states that Alvar García started its construction in 1091 inside the remains of the Church of the Saviour, which was in ruins as a result of successive Muslim attacks, and that Alfonso VI of Castile raised the money necessary to build it. Other historians believe the Cathedral to be the work of the maestro Fruchel in the 12th century coinciding with the repopulation of Castille led by Raymond of Burgundy.
Of the 13th century are the first stages of the towers and aisles and of the 14th century the second stage of the towers, the cloister, the vaults and the flying buttresses. Already in the 15th century the cathedral was complete and in 1475 Juan Guas built the mechanical clock.
The Cathedral of Ávila is considered by its age (12th century), along with the Cathedral of Cuenca, as the first two Gothic cathedrals in Spain. It shows French influences and great resemblances to the Abbey Church of St Denis, the first European Gothic church.
References:Duino Castle was built by the Wallsee family in 1389 on the cliffs overlooking the Gulf of Trieste. It replaced an older castle from the 11th century. Over time, the Wallsee family disappeared and the castle, after having been used as a prison, became the residence of the Luogar and Hofer.
At the end of the 19th century it became the property of Prince Alexander von Thurn und Taxis from the Czech branch of the House of Thurn and Taxis. It remains with the family to this day with his great-grandson Prince Carlo Alessandro della Torre e Tasso, Duke of Castel Duino the current owner. The castle has been opened to the public as a museum and park.