This is the Oriental Pearl Tower; a random building I found on a list of tallest buildings and structures.
It serves different purposes ranging from communication broadcasting (it's main purpose), a revolving restaurant, a mall, a hotel, and others in it's location of Shanghai, China.
It structurally consists of two main spheres connected by three pillars, which are supported by three columns. The largest sphere at the bottom of the tower has a diameter of 50 meters. The other main sphere has a slightly smaller diameter of 45 m. There is a total of 11 different spheres used for different purposes in the tower. There are fifteen different observatory levels throughout the tower. The highest one is located at a height of 1148 ft!