The construction of high-rise buildings is not common in German cities, and especially not in the city centers, where traditionally steeples are the tallest structures. Due to its economic profile as an international financial centre, only Frankfurt has developed a skyline of high-rise buildings and skyscrapers in its city center. Out of a total of 18 skyscrapers in Germany, meaning buildings at least 150 metres (492 ft) tall, 17 are located in Frankfurt.