LONDON.- The Royal Institute of British Architects announced the shortlist for the 2011 RIBA Lubetkin Prize, given to the best international building outside the EU. This year’s prize has a star-studded shortlist of five magnificent new buildings from around the world. The Masdar Institute in Abu Dhabi by Foster + Partners is a futuristic university campus which operates in the heat of the desert by merging traditional building wisdom with the latest technology; Guangzhou Opera House, China by Zaha Hadid Architects reinvents the traditional opera theatre with its dramatically curving contours; The Met in Bangkok by WOHA is a residential skyscraper incorporating outdoor spaces, balconies and gardens; both Boston Museum of Fine Arts, USA by Foster + Partners and the Virginia Museum of Fine Arts by Rick Mather Architects are contemporary galleries built to complement the original museum architecture. The winner of the R