What is Planking? Pictures dangerous and funny

Planking a weird demo of lying down and photograph by someone, it is a weird art, of posing to the camera, the weirder the pose the more interesting and artistic it is.

Planking is like trying to mimic a wooden plank. The history of planking is not really know if who started it and where, but it is getting more famous and admire in the photography world and the world of art.

Some even push it to the next level by planking in a dangerous place such as top of the building and roads.
Unusual locations make it more interesting and much more creative. What do you think of this new trend Planking?

See the dangerous planking below and some are funny