Edinburgh Castle is perhaps the city's most famous landmark. It stands on top of the remaining core of an extinct volcano. Excavations suggest the site was inhabited by Bronze Age man as early as 900 BC, and was fortified by Iron Age man roughly 2000 years ago. The oldest part of the present day Castle is St Margaret's Chapel, built in the early 12th century. The Castle holds the Honours of Scotland and more recently has welcomed back the Stone of Scone otherwise known as the Stone of Destiny. The Grassmarket is a central area situated below Edinburgh Castle. A weekly market was held there from 1477 until 1911. The area continues to be a popular area for socialising. The Grassmarket was also the site of many public executions