Isaac Newton famously said "If I have seen a little further, it is by standing on the shoulders of giants". Next time you gaze up at his sculpture on the British Library's forecourt, consider that you are doing exactly the same. For most of the library's treasures are beneath your feet in four levels (equivalent to eight storeys) of subterranean basement. Few of the library's half a million annual readers get to see these......

What happens in a Tube station when all the passengers have gone home? Why do Tube workers carry cards about rat piss? And why isn't standing on the right of an escalator necessarily a good thing? Londonist finds answers on our latest nocturnal investigation. Some of London's busiest Tube stations are in a mess. Missing tiles and chicken-wire cornices are a familiar site, especially at King's Cross and Leicester Square. It's a case of......