The Brandenburg Gate is the last surviving town gate of Berlin, Germany. When completed in 1791, the lavish gate greeted visitors to the boulevard that led directly to the Prussian palace. Architect Carl G. Langhans modeled the gate after the Propylea, the gateway to the Acropolis in Athens. On top was the “Quadriga of Victory,” a statue of a chariot drawn by four horses. Heavily damaged in World War II, the gate was restored in 1957. Why was it closed in 1961, and when did it reopen? Discuss