On November 11th ,a beam of light, passing through multicolored glass of the largest rose window in the Palma Cathedral , is projected just below the  rose window of
the main facade. This strange phenomenon can only be observed twice a year .
The Feb. 2th  there’s the chance to see the same phenomenon of meeting
 inside due to the orientation of the monument .
On December 21th when you can see also a explosion of light from
the center of the rose window.