We've showcased countless cool stairs here at Apartment Therapy. Here's yet another to add to the books: it's a stair made of paper tubes, found in a project called the Paper-Brick House...

Designed by China's Li Xinggang Atelier, the Paper-Brick House is made of paper boxes and tubes. The temporary structure was erected as China's pavilion for the Venice Architecture Biennale 2008, with a theme of "ordinary architecture". We love how these ordinary materials have been composed to create anything but ordinary architecture.

See more of the house and its cool stair at archiCentral.