King Charles's Castle, Isles of Scilly, United Kingdom

King Charles's Castle is a ruined artillery fort overlooking New Grimsby harbour on the island of Tresco in the Isles of Scilly. Built between 1548 and 1551 to protect the islands from French attack, it would have held a battery of guns and an accompanying garrison, designed to prevent enemy vessels from entering the harbour. The castle is polygonal in design, constructed from granite stone, with the gun battery at the front, and a dining room, kitchen and living accommodation at the rear. An additional defensive earthwork was constructed around it during the 17th century. The design of the castle is unusual for the period, and is only seen elsewhere in blockhouses along the River Thames.

The castle's design was unsatisfactory, as its guns could not be angled so to fire down into the harbour, and its defences were considered vulnerable to attack. To mitigate this, an additional blockhouse was probably constructed below, closer to the water, but eventually a new fortification, the Star Castle, was built instead on the neighbouring island of St Mary's, which became the main fort in the Scilly Isles. In the aftermath of the English Civil War, the Scilly Isles were held by the Royalist sympathisers of King Charles I, who gave the castle its current name. The islands were then attacked by a Parliamentary force led by Sir Robert Blake in 1651, who landed on Tresco but bypassed the fort as he took the island. Its Royalist defenders blew up parts of the castle as they left, and some of its stone appears to have been used to build the newer Cromwell's Castle by the harbour.

Although King Charles's Castle was being used to house soldiers in 1660, by the 18th century it was described as ruinous. After 1922, the castle passed into the guardianship of the Ministry of Works, and archaeological excavations were carried out in 1954. In the 21st century the site is controlled by English Heritage and is open to visitors. It is protected under UK law as a scheduled monument and a Grade II* listed building.

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Castles and fortifications in United Kingdom

Church of St Donatus

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.

J A (3 years ago)
Fantastic viewpoint. Well worth the walk up.

Sage Naka (4 years ago)
Excellent view from the castle. Great hike to the castle as well. Dog friendly.

Claire Searancke (6 years ago)
Fantastic ruined castle with a good history. Fabulous views over Tresco

pete williams (6 years ago)
Fantastic views and a wonderful walk both there and back

Justin Floyd (7 years ago)
Well worth a walk/scrabble up from Cromwell's Castle (though you can have a more gentle approach from the Quay if you go up Back Lane). Great views across all of the islands. No entry fee. You can also wander the surrounding area looking for cairns.

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Church of St Donatus