My eye was caught this morning by the façade of Abercrombie and Fitch which looked fleetingly like the American Embassy, flying the American flag in the morning sun.   Once upon a time it was Queensberry House, the town house of Charles Douglas, the Marquess of Queensberry, although it was originally designed in 1721 for John Bligh, an Irish peer, by the Venetian architect, Giacomo Leoni.   According to Leoni, he showed the design to Lord Burlington who ‘gave leave to the person who executed it, to set the Front towards his own garden’.   Constructed by a Chelsea bricklayer, John Witt, it was later remodelled by John Vardy for the Earl of Uxbridge.   In the nineteenth century it became a branch of the Bank of England.   So it is perhaps not surprising that it looks more like an Embassy than a fashion store:-