This is the Unite the Union Transport House in Belfast,. Photos were taking in Oct 2015. The info below I found on Wikipedia.
Unite the Union, commonly known as Unite, is a British and Irish trade union, formed on 1 May 2007, by the merger of Amicus and the Transport and General Workers' Union. It is the largest trade union in the UK and Ireland.
I searched for some info on this sculpture but couldn't find any. It's quite interesting though, I like it!
linking to monday mural