Seeburg Castle on Lake Brienz, Bernese Oberland, Iseltwald, Switzerland

Castelo de Silves, Silves, Algrave, Portugal

Garagnone Fortress, Garagnone Castle, Spinazzola, Barletta-Andria-Trani, Murgia, Apulia, Italy

Castle, buildings and beach, Cala de San Pedro, Cabo de Gata Natural Park, Nijar, Almeria, Spain, Europe

Majestic ancient castle by a serene lake with cloudy skies and mountainous backdrop, Eilean Donan, Dornie, Scotland, United Kingdom, Europe

View of Marina and Torrione Castle Museum, Forio, Island of Ischia, Campania, Italy, Europe

Panoramic view of town, colourful houses, sea and castle, Corricella, Procida island, Phlegraean Islands, Bay of Naples, Campania, Italy

Monemvasia island historic city castle close to turquoise sea, Monemvasia, Laconia, Greece

Peles Castle in the Carpathian Mountains near the mountain resort of Sinaia, Wallachia region, Romania

Camper vans on the coast of Greece with Bourtzi Castle island, Nafplion, Peloponnese, Greece

Kylemore Abbey, Connemara, County Galway, Connacht, Republic of Ireland

View of Miramare e Castello beach and Aragonese Castle in background, Port of Ischia, Island of Ischia, Campania, Italy, Europe

Peles Castle in the Carpathian Mountains near the mountain resort of Sinaia, Wallachia region, Romania

Castle Harbour, Hamilton Parish, Bermuda, North Atlantic, North America

View of Ote-bori Moat, The East Gardens of the Imperial Palace, on a sunny day, Chiyoda, Tokyo, Honshu, Japan

Neuschwanstein Castle, Southern Bavaria. This 19th-century historicist palace is built on a rugged hill of the foothills of the Alps in the very south of Germany and is a UNESCO World Heritage site.

View of Aragonese Castle at dusk, Port of Ischia, Island of Ischia, Campania, Italy, Europe