A few facts courtesy of The London Evening Standard and a few photos courtesy of John E. King:

15,000 square metres of staging - equivalent to 12 Olympic-sized swimming pools.

A flying system that can lift 25 tonnes - that is the same as five elephants.

12,956 props, which is more than 100 times more than used in a West End musical.

A million-watt PA system using more than 500 speakers and 50 tonnes of associated sound gear—which is double the amount of speakers than on the main stage at Glastonbury.

The design team made enough scale model pieces to cover a 100 metre running track. Every performer was been represented by a plastic figurine.

Across all four opening and closing ceremonies at the London 2012 Olympic and Paralympics there will be:
25 containers full of scenery and props and 75 containers of costumes full of 23,000 costumes. Some cast members will wear more than one costume.

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