You are looking at the entrance of Eurotower building. After lots of controversy around this project it was finally finished in 2008. Currently it is best known as the new headquarters of the Zagreb Stock Exchange. There is a big problem with high buildings and skyscrapers in Zagreb because the city government never dealt with the issue of finding a suitable location/s for such high business towers. If you ask me, the best thing to do would be what Parisiens did, forbid high buildings in the center of the city and move the business quarter to the outer parts of the city.