Edinburgh Castle

Edinburgh Castle sits atop a jagged, three hundred and fifty million year old volcanic plug known as Castle Rock. This massive dark outcrop, which rises sharply above the city, has been a fortress since the Iron Age and remains the most besieged place in the United Kingdom. Its defenses have seen over twenty distinct attempts to capture the site, evolving from an early medieval hill fort into a complex of stone ramparts, barracks, and royal lodgings.