You go on a virtual tour of Kensington – the wealthiest borough in London (indeed the wealthiest district in the country) – you best strap yourself in because “Sights & Secrets of Virtual Kensington” takes you through the looking glass: to the Cotswolds and the Egypt of the pharaohs and San Francisco and Docklands and “the Cage” (the second most important interrogation centre of Nazi war criminals after Nuremburg). Let alone a quick paraglide directly above Kensington Palace. And as for the dramatis personae: it’s the most astonishing line-up in all of London.