The £134M Tate Modern Gallery opens in London this week, emerging from the once derelict Bankside Power Station on the south bank of the River Thames. The project was managed by Schal and designed by Ove Arup with architect Herzog & de Meuron and creates 30,000m 2of new gallery space within the shell of the power station - the largest modern art gallery in the world. The original power station was designed by Sir Giles Gilbert Scott and is one of the planet's largest brick structures. Conversion to a gallery sees a new public space created in the huge former turbine hall, while new internal partitions have turned the boilerhouse area into the main gallery. Two upper floors have been added to create a glass 'light beam' structure spanning the full length of the roof to give outstanding views of London, as well as letting natural light into the gallery below. The new Millennium Footbridge linking the gallery to the north bank by St Paul's is also on schedule for completion next month after being inaugurated by the Queen this week. This Foster designed, Arup engineered structure will be the first new Thames bridge in London for a quarter of a century.