ANALEMMA TOWER is a real project of Clouds Architecture Office and consists in a floating tower.
How can a building float in the air? The tower will be hanged with heavy-duty cables to an asteroid (previously catched) orbiting the Earth.

The building orbits the Earth according the asteroid orbital way.
The orbital path will have a shape like an 8 and a period 24h long, this means that  the tower won't  be every time at the same place, but will travel above major cities.

![fotook.jpg](https://steemitimages.com/DQmX9TB15ajPhQXvc8rn2iaJihUJa8bCisrQdaX9VmkKLuN/fotook.jpg)

In meantime NASA communicated that in the future harnessing and manipulating asteroids will be possible.
Same NASA is planning to capture and redirect an asteroid in 2021 (not so far!)

I think this is one of the most impressive project that I ever seen.
I'm really thinking about it: it would be possible or not? 
Maybe this specific project won't be realized in a short time, but the fact that also NASA is working on asteroids catch , let me believe  that  in future will can travel using asteroids!

For more detailed information and imagines, here the link of my source:
http://www.cloudsao.com/ANALEMMA-TOWER