Illasi Castle was built in the 12th century. The structure, composed by a fortified palace and a single tower, surrounded by a wall, is extremely peculiar and almost unique in Europe. It is still unclear which lord built it. It already existed when the tyrant Ezzelino da Romano used it as a base for his wars.
Later it became one of the main strongholds during the domination of the Della Scala family, lords of Verona. It was besieged several times, and at the end of the 14th century it was burned by the troops of the Da Carrara family, lords of Padua. It was then conquered, like all the province of Verona, by the Republic of Venice.
In the 15th century its military function was impaired by the use of guns: after an easy conquest by Milanese troops, the Venetians decided to dismiss it. They gave it to the Pompei family, one of the few noble families of Verona always faithful to Venice and without sympathies for the rival Austrian Empire. The Pompei shortly used the castle as a residence.
Of the original structure only the gateway, a small tower, the remains of a chapel, two cisterns, the keep and 30meter high square tower remain.
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.