The Central square of the city, the Union Square, is the place where the past modern times. Hidden under a glass surface, the ruins of the Roman citadel Napoca represent the beginnings of the 2,000 years old city of Cluj Napoca. Opposite, the monumental statue of Matthias Corvinus attracts the visitors, who can’t leave without a picture with the massive monument. Behind, the Saint Michael Church dominates the square. If you are around on a Saturday, make sure you don’t miss the organ concert.