Galeras Fort, locally known as Fuerte de Galeras, lies on a mountain next to the city of Cartagena. Plans to fortify this, 219 meter high, mountain date back to the 16th century. Galeras Fort however was built between the mid-18th century and 1777 by the Croatian military engineer Mateo Wodopich. It was designed by the military engineer Pedro Martín-Paredes Cermeño in the style of eclectic Neoclassicism according to the principles of the Frenchified Spanish School. It had to guard the Military Arsenal of Cartagena and was connected to the city walls. It is situated on a mountain between Atalaya Fort to the north and the Fajardo Battery to the south.
The quadrangular fort saw action during both the Peninsular War, between 1808-1814, and the Cantonal Revolution in 1873-74. In the 20th century it gradually lost its military importance but still served as a military prison.
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.