84K views · 1.9K reactions | When Big Ben was commissioned in the 1800's, the British Parliament demanded the clock should be the biggest and most powerful in the world, as well as incredibly accurate. How did early builders construct this iconic wonder? Watch more Blowing Up History on discovery+: https://bit.ly/3qAUoQ1 | Love History | Facebook

41K views · 437 reactions | 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 International | Facebook