Leeboards – 1820s houses – our national treasure – a spectacular hanging (but, if we’re honest, isn’t every hanging spectacular, as well as horrifying) – bullseye – elephants – red sails – the Thames – steamships – missing fingers – the magic of a London name – a huge slab of mud… well, that’s enough to be getting on with – in short, it’s story-time, boys and girls, learn about London time, so gather round