The square was established at the end of the 17th century by Georg Christian Unger.
If you arrived during the Christmas season, do not miss one of the city's major Christmas markets held here every year. But do not worry, it is not every evening that the square is crowded with tourists. It is usually calm and pleasant here, and easy to enjoy its beauty.
King Frederick I let the Huguenots and Lotternes build churches in the square. During World War II, the square was bombed and severely damaged, but after the war the buildings in the square underwent significant reconstructions, and today no war damage can be seen.
In the square you can also see the French Cathedral (Französische Dom), and the German Cathedral (Deutsche Dom). Inside each cathedral operate museums. In the French Cathedral is located the Hugenotten Museum, for the French who fled their country and found refuge in Prussia. The German Cathedral has the The Museum of German Parliamentarian History.
Between the two impressive cathedrals is a concert hall which is the home to the Berlin Symphony Orchestra. The Orchestra appears there almost every evening at 8 pm (unless you are not touring during the holidays). Sometimes you can even bump into them in the main square and watch them for free (try to leave a tip ... they will be very happy).