The Royal Mile is a famous street in the Old Town of Edinburgh, Scotland. It runs between Edinburgh Castle and the Palace of Holyroodhouse, and it's called the Royal Mile because it used to be the route that monarchs would take for processions. The street is packed with shops, restaurants, and historical sites, making it a popular tourist destination. From the castle to the palace, you'll find different sections like Castlehill, the Lawnmarket, the High Street, the Canongate, and Abbey Strand. It's a bustling and lively street, full of history and charm.