The act of lying on one's back, flat on the ground or flat surface, facing up and looking at the sky, arms and legs wide open.
Best done with well known monuments visible behind the subject, when posing for the picture. Best results are obtained when the subject is slightly tilted sideways as seen from the camera position.
Not to be confused with planking
, in which the subject is facing down. Bruning is sometimes (incorrectly) referred as brunning