The former United Building, later known as the Banking Building, is also known as the Bund 3 because it is the third building in the Bund Historic Complex from the south. Don't look at its height and width in the complex is not outstanding, but because the construction time is relatively early, it broke the record of Longhua Tower for nearly a thousand years and became the tallest building in Shanghai. Another first is the first building with a steel frame structure, and a tower is designed at the top of its northeast corner with a spherical dome, which is also very eye-catching.