From the Alcazaba, descend in a northward direction through the Barranco de la Hoya, a line of wall that reaches San Cristobal Hill was built during the time of King Jairán (1012-1028) in the eleventh century. Here are the remnants of the neighbourhood amurallamiento musalla, which descends from the hill via the main street Antonio Vico.
On the hill, known in Muslim times as Monte Laham, there are seven towers, three square Muslim towers and four semicircular Christian towers. These were built by the Templars of Alfonso VII, who constructed a strong-chapel following the Christian conquest of the city under the command of the troops of Alfonso VII in 1147.
On this hill, which has an impressive view of the city, and located on a large pedestal, is the image of the Sacred Heart of Jesus, constructed of local Macael marble. It was restored in 2000 and it is said to bless the city and the Mediterranean Sea. It was originally built in the twentieth century (around 1930).
References:The Church of St Donatus name refers to Donatus of Zadar, who began construction on this church in the 9th century and ended it on the northeastern part of the Roman forum. It is the largest Pre-Romanesque building in Croatia.
The beginning of the building of the church was placed to the second half of the 8th century, and it is supposed to have been completed in the 9th century. The Zadar bishop and diplomat Donat (8th and 9th centuries) is credited with the building of the church. He led the representations of the Dalmatian cities to Constantinople and Charles the Great, which is why this church bears slight resemblance to Charlemagne's court chapels, especially the one in Aachen, and also to the Basilica of San Vitale in Ravenna. It belongs to the Pre-Romanesque architectural period.
The circular church, formerly domed, is 27 m high and is characterised by simplicity and technical primitivism.