In 2014, the London Underground hosted an average of 26.6 million trips a day.
That's equivalent to the entire population of Mozambique queuing up to take one trip on the subterranean network. Every. Single. Day.
(Have a good think on that next time you're about to moan about a delay of five minutes on the circle line)
With that number of sweaty bodies to deal with on a daily basis, the minds at Dice - formerly the IT Job Board - got to work investigating the tech that keeps this system ticking along (most of the time).
From escalators to brilliant facts, consider this your pub ammunition for moving the conversation on from unsettling political races.