Castillo de Bujalance was built in the 10th century during the Caliphate of Abd-ar-Rahman III. It is a clear example of Muslim military architecture in Al-Andalus. It subsequently underwent several modernizations, most recently in 1512, which were paid for by Queen Joanna of Castile.
It is rectangular in shape, measuring 59 metres north-south and 51 metres east-west. The castle's original name, 'tower of the snake', and the fact that it had seven towers, led to the current name of the city and its coat of arms. In 1963, the Ministry of Culture declared the site a Bien de Interés Cultural monument. Currently, its courtyard is used as a cultural space, which is in the process of being cataloging, restored and reconstructed. Highlights include the Festival of Theatre, Music and Dance (Nights at the Citadel) and Andalusian Dinner during the summer months.
References:Visby Cathedral (also known as St. Mary’s Church) is the only survived medieval church in Visby. It was originally built for German merchants and inaugurated in 1225. Around the year 1350 the church was enlarged and converted into a basilica. The two-storey magazine was also added then above the nave as a warehouse for merchants.
Following the Reformation, the church was transformed into a parish church for the town of Visby. All other churches were abandoned. Shortly after the Reformation, in 1572, Gotland was made into its own Diocese, and the church designated its cathedral.
There is not much left of the original interior. The font is made of local red marble in the 13th century. The pulpit was made in Lübeck in 1684. There are 400 graves under the church floor.