A Talayotic period settlement (1000-700 B.C.) in Trebalúger was a spectacularly large talaiyot; it is 28 metres in diameter at its widest point. It has an elliptical layout and was built on a high rocky outcrop on the site of an earlier structure from the Naviforme period dating from 1350 B.C., with the bases of the pillars still preserved inside. At the front of the monument, near the entrance, you can see the remains of a ramp that led up to the top of the talaiyot. Around the outside you can see the walls of a polygonal structure, also from the Talayotic period, which has been damaged by the lime kiln built over it at a later date.
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.