Menger Sponge buildings

Taipei Performing Arts Centre by NL Architects

http://www.yatzer.com/1584_taipei_performing_arts_center_by_nl_architects

http://www.designboom.com/weblog/cat/9/view/5592/nl-architects-tpac-taipei-performing-art-center.html

DnB NOR Headquarters by MVRDV:

http://www.dezeen.com/2009/09/17/dnb-nor-headquarters-by-mvrdv/

DnB NOR Headquarters by a-lab:

http://www.dezeen.com/2010/04/22/dnb-nor-headquarters-b-building-by-a-lab/