Swing by Neptunbrunnen and imagine the conversations it's heard from people who have long gathered there. If this historic meeting point could talk, it would have many interesting tales!
Mitte is where you'll find Neptunbrunnen. It's free to visit, which means you'll have more money in your pocket to explore! Some other worthwhile attractions not far from the historic water feature include Alexanderplatz, Brandenburg Gate and Reichstag Building.