It is no more than appropriate that in Sir Christopher Wren’s tercentenary, the star feature of his masterpiece, the Whispering Gallery at St Paul’s Cathedral, should have been re-opened after four years of renovation. London’s great sotto voce experience is back.

As well as the important buildings and monuments, Blue Badge Tourist Guides have to be aware of distinctive characters on the streets of London. None are more distinct than the Pearly Kings and Queens who dress up in the ‘colourful’ costumes and raise money for charity. In fact, a Pearly costume is usually made from black and white materials, with occasionally a brightly coloured scarf (as on this photograph) or feathers adorning a pearly hat or cap.