Ostankinskaya TV-tower story

Hi, all!
I've decided to write here about all I see. Yesterday I went (by work questions for work reasons) to Ostankino, a region of Moscow, when where the Ostankinskaya TV-tower located. This is one of highest free-standing buildings in the world, and it inspires me - it's beautiful. I couldn't resist myself to avoid taking its photos! It's about 500m of in height, and it's unbelievable that this giant is made mostly of concrete and it is installed on an only 3m-high concrete base! It is a the greatest engineering solution! Concrete by itself is fragile and not flexible, but there was discovered a clever option was discovered to make it acceptable for such usage - the concrete is preloaded by tens with tons of steel wire ropes inside the tower. Approximately ten years ago (+\-) inside a tube where these ropes and telecommunication cables were located, there was a fire, and a lot of equipment was broken destroyed, and these ropes were fused (?). And there was a real chance for it the tower to fall down!

But the concrete that lost its preload, outstayed remained, and in several years during the next few years the ropes were restored, and the tower was on its place!
If you plan to visit Moscow, you can visit the observation bulb (thickest bulb in the middle of it). If the weather will be is fine, you'll see a great view picture of Moscow from ~350m height.

I have never been there, but I am going to do that. Who is going to visit that place with me?