In Spain, the Christmas festivities last until January 6th, the Day of the Kings. For the duration of our stay in Madrid, the streets of the center were lit up with lovely white (and sometimes blue) designs.
The first photo is of the Puerta de Alcalá.
This second shot is looking back toward the Puerta de Alcalá (on Calle Alcalá).
This is the Christmas tree in the Puerta del Sol.
And this is a shot of one of the sidestreets that leads to Sol.