Albrechtsberg Castle was probably built in the 12th century and was documented first time in 1230. It belonged to Protestant Neidegger family from 1377 until 1527 and was badly damaged in Hussite Wars. Knight Erasmus von Peuckham converted it into a Renaissance style residence in the 16th century. The castle was again damaged during the Thirty Years' War.
The towering, irregular structure largely dates from the second half of the 16th century. It is characterized by its high, crenellated ring wall, which features prominent watch and defense towers with numerous keyhole slits. The three-story, multi-winged complex includes three courtyards, a southern entrance through a round-arched portal marked '1675' in the gable field, and a main gate in the northeast with a machicolation. One courtyard contains a cross-vaulted arcade on squat columns. Additional features include a smoke kitchen with a pyramid chimney, cross-vaulted rooms, a wooden ceiling marked '1604,' and an 18th-century granary with a hipped roof. The castle chapel houses the burial site of the Neidegger family.
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.