This is the Steinernen Brücke, called in English as Stone Bridge. It is a medieval bridge in the city of Regensburg in the Federal State of Bavaria, Germany. It was built from 1135-1146 on the River Danube that flows along this city.
I had been to this city a lot of times and for me it is one of the most beautiful cities I had ever visited. It is simply full of history! According to a story, the knights of the 2nd and 3rd crusade used the Stone Bridge to cross the Danube on their way to the Holy Land. I felt like being part of history everytime I visit this city!