Liu Bolin, is an artist from China that is known as the "The Invisible Man."
He creates self-portraits in which he is camouflaged within the photograph.
He paints himself from head to toe to match the background.
Recently, Liu created some pieces to honor those we lost in the terrorist attacks on September 11, 2001.
In the first picture he is standing in front of the space where the Twin Towers once stood.
The second image shows Lui standing in front of a wall covered with mini-memorials to those that were lost in the attacks.
These works are powerful, thoughtful, and heartfelt.