Royalty and dignitaries from around the world have arrived in London ahead of the coronation of King Charles. Many of them will be guests in Westminster Abbey on Saturday morning where the coronation ceremony will begin at 11 o'clock. Millions of other people across the UK and beyond are preparing to celebrate the coronation of King Charles III - a symbolic ceremony combining a religious service and pageantry. The day of splendour and formality will feature customs dating back more than 1,000 years. King Charles III is head of the Commonwealth countries and the head of state of 14 countries. (Picture: His Majesty King Charles III. Source: WPA Pool/Getty Images)