The direction to face from any location in the world is not a trivial problem. One cannot just draw a straight line on a Mercator map of the world joining one’s location to Mecca and measure the angle because the world is a sphere, not a flat plane.
THE BEARING OF MECCA
Muslims offer their five times daily prayer (Swalat) facing Kaa'ba which is known as Qibla (the direction of Kaa'ba / Baitullah)