The third leg!

Ther is something wrong with this table. Could you please help us out in finding out the fault in it?
Inside out!

Is there something strange about this building?
Hint: Look at the pillars in the middle floor.
Another set of grey spots!

It is a different version of the grey boxes in squares. If you could not count them in the earlier picture, you still won`t be able to.
Is it a square?

Is the picture outside the circles a square one? Yes it is. Don`t concentrate if you want to find out.
Who`s on top ?

It is not really known that who is on top but this visual of simply high quality and it is really on the top.