Large sections remain unfinished; patches of the tower's concrete skeleton are exposed to the outside world.

大部分未完成；塔的混凝土骨架部分暴露在外面的世界。

With its concrete skeleton, the Millennium Tower was designed to impose a load of 11,000 pounds per square foot or 530 kilopascals to its foundation (about 100 times more than an average house).

千禧塔采用混凝土骨架，设计可对其地基施加每平方英尺 11,000 磅或 530 千帕的荷载（大约是普通房屋的 100 倍）。