Hawthornden Castle comprises a 15th-century ruin, with a 17th-century L-plan house attached. The house has been restored and now serves as a writer's retreat. Man-made caves in the rock beneath the castle have been in use for much longer than the castle itself.
The castle comprises a roughly triangular courtyard, approximately 24m long and 12m at its widest point, projecting north-west along a rocky promontory on the south bank of the River Esk. The 15th-century tower is situated at the south-east corner. Around 8m square, the tower is ruined, although the recent renovation included the installation of a library in the tower basement. There is also a rib-vaulted pit prison beneath the tower. Windows on the south curtain wall show that a range of buildings once stood here, although these are now all gone. A well in the west end of the courtyard supplied the castle's water.
The 16th century range is to the north, and is linked to the tower by a 16th-century wall, in which is the entrance. The range is of three storeys and an attic, and was originally harled. The renaissance-style doorway is of later date, as is the iron knocker with the initials of Sir William Drummond (the son of the poet) and his wife, Dame Barbara Scott. There are three gunports around the doorway, with a fourth in the tower. The last addition to the castle was a single-storey range to the west, built in the late 18th or early 19th century.
References:can it be visited by the public
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.