London's Big Ben is probably the world's most famous clock and central to the UK's New Year celebrations. But, in a digital world, what does it take to keep the analog 165-year mechanical clock on time? CNN's Isa Soares climbs the narrow stairs and goes behind the scenes of the iconic landmark to see what it takes to make sure London's New Year happens when it should. | CNN

4.6K views · 104 reactions |  The scaffolding that has enveloped the Elizabeth Tower, which houses the Big Ben bell, is finally starting to come down to reveal four fully restored clock faces. Renovation work on the world-famous landmark began in 2017 and is due to end in spring 2022.  | Euronews English | Facebook