Video of the day: Planes landing at Heathrow

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Heathrow Airport is one of the world's busiest airports for passengers (only Beijing and Hartsfield-Jackson, Atlanta are busier). In the first six months of 2012 alone, more than 46 million passengers passed through it.

If you findit hard to visualise that number, we thought this video might help. There's a strange beauty to these mesmerising planes as they gather in the sky ready to descend... and it goes just some way showing just how busy a busy airport can be.

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