Columba arrived from Ireland in the 6th century to spread the gospel.
A 12th-century church, atmospheric ruins of an abbey, and a carved stone memorial from the 10th century are among its attractions, along with Scotland's oldest Christian cemetery, with graves of more than 60 Scottish kings, including Macbeth.
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Below, the Royal Mile stretches down the steep escarpment to the elegant Palace of Holyroodhouse, another of Edinburgh's most famous landmarks.
Lined by brick townhouses and historic landmarks, the Royal Mile is also filled with small shops, kiltmakers, tearooms, museums, and cafés.
Another of Scotland's great attractions is its solitude, with its remote stretches of heather-covered moors; secluded beaches; and wild, romantic mountains, with their deep glens and lochs.
Whether you choose vibrant cities, historic towns, or remote moors and islands, you'll find they are all filled with memorable things to see and do.
Highlights are the spectacular Crown Jewels; the famous Stone of Destiny (the Stone of Scone); and St.