roam free, like buffalo, in the urban savannah of their square. When it rains the benches seek shelter under the nearby trees, inviting people to sit on them. As the temperature drops the bins start to shiver and when the sun shines the bins and benches break into song, singing in tight barbershop harmonies. Above all the bins and benches are still functional pieces of street furniture waiting for people to come and sit on them or deposit rubbish in their lids. Worldbench (2005) Worldbench (2005) is an installation that uses a park bench to link up locations across the world. It takes an ordinary wooden bench and places it up against a screen, attached to a wall in the school's playground. Reflected on the screen is the mirror image of the bench, disappearing into the distance; but whilst one side of the bench is in South London for example, the other could be in the north of England, or the other side of the world. Four Worldbenches have been created, with many more to be installed around the globe. Monument to the Unknown Artist (2007) In 2007, Greyworld launched Monument to the Unknown Artist beside the Tate Modern on London's Bankside. A permanent installation, it garnered the interest of the world's media. At first glance the installation would appear to be a simple bronze statue, dressed in a neck scarf and loose fitting suit. However, the monument seeks inspiration from passers-by, inviting them to strike poses which he copies, continually changing his form in a light-hearted and mischievous way. The unique sculpture offers an alternative and accessible creative experience for the public, allowing them to create a dialogue with the work of art. Bloom (2007) Their installation for a new Fosters and partners development in London's Spitalfields launched in 2007. Occupying the full height of the building's central 10-storey atrium it uses hundreds of flowers, hidden within a seemingly sober column suspended within the space, to allow the building to bloom into life. They respond to the motion of those passing by, opening and closing, thus allowing every viewer interaction and influence over their environment. Invisible (2007) In 2006 Channel 4 chose 7 sites across the United Kingdom to be part of The Big Art project. Burnley, East Lancashire was one of seven sites chosen to take part. 15 young people from throughout the region commissioned the artist group