Breaking news: A new Beijing hotel designed by Rem Koolhaas, the rigorous Dutch architect who conceived our downtown library, is going up in flames.

Argentinian developer Alan Faena enlisted starchitects Rem Koolhaas and Norman Foster, and even film director Baz Luhrmann, to create an arts-laden "utopian" city-within-a-city.

Designed by Rem Koolhaas and Reinier de Graaf as part of their collaboration with OMA, the sphere holds a convention centre, hotel rooms, apartments, offices and retail space. [photos via OMA] I ...