Heads carved into rocks at Enchanted Castle, Sciacca, Agrigento district, Sicily, Italy, Mediterranean, Europe

Castle of Milazzo, Milazzo, Messina, Sicily, Italy, Mediterranean, Europe

Castle Lueg, Slovenia, Europe

Aerial drone panoramic view of Fort of Nossa Senhora da Rocha (Fort of Our Lady of the Rock) (Castle of Porches), Porches, Lagoa, Algarve, Portugal

Aerial drone panoramic view of Fort of Nossa Senhora da Rocha (Fort of Our Lady of the Rock) (Castle of Porches), Porches, Lagoa, Algarve, Portugal

Craig-y-Nos Castle, Powys, Wales, United Kingdom

An aerial view of the dramatic ruins of Tintagel Castle, said to be the birthplace of King Arthur, on a rocky island off the shore, near the town of Tintagel, Cornwall, England, United Kingdom, Europe

Dunnnottar Castle at sunrise, Stonehaven, Aberdeenshire, Scotland, United Kingdom

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

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.

An aerial view of the dramatic ruins of Tintagel Castle, said to be the birthplace of King Arthur, on a rocky island off the shore, near the town of Tintagel, Cornwall, England, United Kingdom, Europe

Bride and groom stand on the rocks near the fortress by the sea. Aerial view.

Castle Sinclair Girnigoe from Sinclair's Bay. The medieval and renaissance fortress is the most spectacular ruin in the North of Scotland, in the Highlands near Wick and Caithness. Sunset shot

Yellow rocks and cliffs on a sandy beach. A bay by the sea, over which the old stone bridge of the Pinhão fortress connects two cliffs. Praia da Caldeira, Lagos. Algarve, Portugal, Europe