he proposed Ras al Khaimah Convention and Exhibition Centre in the UAE
bears a striking resemblance to the Death Star. 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.

cont'd....
http://blog.wired.com/underwire/2007/05/rem_koolhaas_de.html