VIDEO: Italian cyclist's world record ascent of Dubai's iconic Burj Khalifa

Vittorio Brumotti climbed Burj Khalifa, the world's tallest tower, on his specially designed bike back in October 2012. The Italian covered about 3,700 steps and 160 floors to reach the top at 828 metres in two hours and 20 minutes, without ever resting his foot on the ground. The record still stands today. Here's how he did it.