If you praise British punctuality you can actually thank… to the old pennies. No, this is not a typo or a mistake: Big Ben, the country’s biggest symbol, is always on time thanks to a stash of British pennies placed on the clock’s pendulum. This apparently primitive method has helped the Big Ben to stay on time for the last 154 years, but you can know more about this and other secrets with the help of this awesome infographic that shows you London in a totally new light. Spare a few minutes and learn more about this amazing city and all its hidden secrets.