Big Ben

As the multi-million pound restoration of a global icon begins, historian Anna Keay follows the three clockmakers taking apart the giant mechanism for the first time in its history.

As the clock tower is dismantled into thousands of pieces and sent for repair, new technologies uncover astonishing secrets of the past. But will Ben's bells be ready in time to chime for New Year?

As Big Ben goes silent for a multi-million restoration, architectural historian Anna Keay gains exclusive behind-the-scenes access to the work.

After six long years, London's most iconic landmark has finally been restored to its original glory, brightening the skyline once more with its sparkling colours, golden shine and spotless masonry.