Italy, Valle d'Aosta, Fenis Castle.

Ethiopia, Gonder, Royal Enclosure.

Germany, Mecklenburg-Vorpommern, Rostock, Stone Gate.

Italy, Campania, Naples, Castel Nuovo, also known as Maschio Angioino.

Italy, Campania, Naples, Castel Nuovo, also known as Maschio Angioino.

France, Corsica, Calvi, The Citadel.

France, Corsica, Calvi, View of the Citadel from the harbour.

France, Corsica, Calvi, The Citadel.

Scotland, Edinburgh, Blackness Castle.

Scotland, Edinburgh, Lauriston Castle.

Scotland, Edinburgh, Lauriston Castle.

Scotland, Edinburgh, Lauriston Castle.