Perched high above the capital, Edinburgh Castle is Scotland's most important and famous fortress.

An Edinburgh tradition, The One O'clock Gun fires from the ramparts of the Castle each weekday.

Edinburgh Castle is used as the launch pad for two of the UK's most spectacular fireworks displays.

Stirling overlooks two of Scotland's most historic battlefields - Stirling Bridge and Bannockburn.

Eilean Donan Castle, on Loch Duich, is for many people, the archetypal Scottish castle.

The 13th-century Caerlaverock Castle is unique in that it is triangualar in shape.

Criagievar's riot of turrets, towers and crow-stepped gables give it its distinctive character.

Overlooking the Firth of Clyde, Culzean Castle is a late 18th-century Adam mansion.

Dunvegan Castle, the seat of the chiefs of the Clan Macleod and still their ancestral home.

Fyvie Castle is an outstanding example of Scottish baronial architecture.

Duart Castle (dating from 1250 and the seat of the Clan Maclean) on Duart Point, Isle of Mull.

The Gothic revival Inveraray Castle, home of the Dukes of Argyll, the chiefs of Clan Campbell.