Antony Gormley office art
I loved Gormley's Blind Light exhibition when there were about 30 of these statues, cast from the artist own body, dotted around on roof tops and ledges within a mile or two of the exhibition and all facing the Hayward Gallery. Really glad I found these which are at office building on the Euston Road.

Comments
He also did the Angel of the North which has become an iconic landmark. I think he is probably my favourite contemporary artist.