King Charles has been praised for his "modern vision" for royal buildings.
The 76-year-old monarch is set to open the doors of St. James Palace for guided tours for the first time, and his former butler Grant Harrold - who worked at Highgrove for the then-Prince of Wales between 2004 and 2011 - thinks it will be a "great experience" for tourists because there are so many "interesting" things to see there.
