Tall Towers Are Not Needed On A Globe Earth

Do you know that there are extremely tall towers? Towers that are 600 meters high? This doesn’t make sense on a globe earth with orbiting satellites. Of course, we know that the earth is flat and that is why there is the use of tall towers. The one pictured here is 1,500 meters.
What is this particular tower being used for. Notice this is not like the towers that are used for broadcasting mobile phone communication. It doesn’t look like it’s transmitting signals but I could be wrong. Is this a Tesla tower that is generating electricity from the air? What are your thoughts on the reason for extremely tall and expensive towers?

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