The recently re-designed $256 million Seoul City Hall opened on August 27,2012 after three years of construction. The winning team of designers, iArc Architects, were selected from a competition. There’s an interesting contrast between the colonial Japanese era building, built in 1926, and the newly constructed glass building.
Interesting fact: The expansion consists of 7,000 glass panes that were later found to break city codes written for energy efficiency.

I like the contrast, but there were local TV reports claiming that many people felt that the new design didn’t have the proper harmony with the area or the existing structure.