How starchitects are remaking skylines

From the August issue: In a city ruled by conservative straight-lined skyscrapers, Bjarke Ingels’ 2 World Trade Center — when and if it is finally built — will stand out as a playful, teetering staircase. Designed as a series of seven precariously stacked blocks, the 3 million-square-foot building rising over Lower Manhattan doesn’t so much want to go upward as topple over. In a Wired story last year, Ingels likened the process of designing 2 World Trade Center to “playing Twister with a 1,300-foot high-rise.” [more]