At Buckingham Palace the Team hopes to discover the layout and location of the original Buckingham House and even find a lost canal, which is believed to have run right across the middle of what is now the main lawn.
At Windsor the location and size of the original palace, built by Henry II, and rebuilt by Henry III, remains a mystery. And can the Team find Edward III's Round Table, where the King met with the Knights of the Garter?
Meanwhile in Edinburgh, the eventful and sometimes bloody history of Holyrood House is laid bare, including the search for Mary Queen of Scots' real tennis court.
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