Šlokenbeka Castle is a fortified manor and the only existing example of a fortified manor centre in Latvia. The construction was started by the Livonian Order before 1544. It was built in a trapeze-type yard, which was enclosed with stone walls and portholes. In 1772 the attic roofs were added to the building.
In the 17th century towers with portals and weathervanes were erected, but Šlokenbeka lost its defence function, being then adapted for domestic purposes. At the end of the 18th century new buildings were built and old buildings were renewed. New gate towers were added at the north and south walls. Between 1841 and 1845, a new manor house in classicist style was built at the north wall. In the 1930s Šlokenbeka lost some of its buildings. During Soviet times it housed the 5th road maintenance unit. Now it contains the Latvian Road Construction History Museum and a restaurant.
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.