No other street in Britain contains more landmarks to our island's history than Whitehall. Here, we visit what was the most notorious address in London when Byron and Lady Caroline Lamb conducted their very public and tempestuous love affair; the Admiralty, where Nelson received his orders to attack the French; and fragments of the tennis courts where Anne Boleyn watched Henry VIII playing tennis. We witness documents that show how Churchill, in 1940, prepared for street fighting in Whitehall's departments. Whitehall tells the story of our island race, its empire, its conquests and its decline, encapsulated in one small corner of the capital.