Visit Krak des Chevaliers

A fortified hill inhabited for 5,000 years, its medieval stone ramp and gate towering over the old city.

Moorish palace-fortress of Granada.

Medieval cathedral, round tower and Cormac’s Chapel crowning a limestone outcrop where St Patrick baptised a king.

One of Europe’s largest castle ruins, sprawled across a travertine hill.

16th-century castle, UNESCO-listed.

Red-brick castle above the Gauja.

Red-brick Gothic castle on an island in Lake Galve, home of the Karaim community and their kibinai pastries.

Fairy-tale town wrapped in a bend of the Vltava, with a painted castle tower and a baroque theatre that still works.