From Crisscross:
The new “Iceberg” building in Harajuku has a complex geometry which reflects light from all angles. This is helped by putting silver inter-layers in the glass on oblique angled sections – giving the flat glass a three-dimensional quality. It is the brainchild of Tokyo-based British architect Benjamin Warner.
I haven’t seen this yet, but looks quite nice.
Update: I just remembered that I blogged this about a year ago.