steel and white stone, the new wing is carefully harmonized with the old structure, and, like his other art museums, makes maximum use of natural light. A horizontal sunscreen on the roof, nicknamed the "flying carpet", is a graceful update of his rooftop art museum on the Lingotto factory in Turin. He also designed a minimalist steel bridge connecting the sculpture terrace of the museum to Millennium Park. Nikolai Ouroussof, critic of the New York Times, noted that some aspects of the building recalled the work of Ludwig Mies van der Rohe, who had made much of his career in Chicago. "The taut forms and refined details, the elevation of an industrial aesthetic to an art form all are hallmarks of Mies's work." But he noted particularly Piano's masterful control of light within the building: "...it is the light that most people will notice.... The glass roof of the top-floor galleries is supported on delicate steel trusses. Rows of white blades rest on top of the trusses to filter out strong southern light; thin fabric panels soften the view from below... On a clear afternoon you can catch faint glimpses through the structural frame of clouds drifting by overhead. But most of the time the art takes center stage, everything else fading quietly into the background It is this obsessive refinement that raises Mr. Piano's best architecture to the level of art." Projects completed 2010 to present The Shard, London (2000–2010) The Shard, built over the underground station of London Bridge, is sixty-six stories and high, which made it, when completed in 2012, the tallest skyscraper in Europe. Inside, it contains luxury residences and a hotel, along with offices, shops, restaurants, and cultural centers. It has a wide base and a split pinnacle point which seems to disappear into the clouds, like, as Piano described it, "a bell tower of the 16th century, or the mast of great ship...Often buildings of great height are aggressive and arrogant symbols of power and egoism," but the Shard is designed "to express its sharp and light presence in the urban panorama of London." Like his other tall buildings, the glass sunscreen on the exterior extends slightly above the building itself, appearing to split apart at the top. The critical reaction to the tower was predictably mixed. Simon Jenkins of the Guardian of London saw it as a foreign attack on the traditional London