Laban is the largest purpose-built contemporary dance centre in the world. The building was designed by Herzog and de Meuron, the Pritzker Prize winning (2001) Swiss architects who also designed the Tate Modern and the National Stadium in Beijing (2008 Olympic Games).
By day the building's semi-translucent cladding allows traces of dance and movement to be visible through the walls. By night, the building becomes a coloured beacon with light and movement spilling out illuminating the surrounding area.
More at http://www.e-architect.co.uk/london/laban_centre.htm