likethebeer

http://www.thisiscolossal.com/2012/04/gravity-defying-land-art-by-cornelia-konrads/

German artist Cornelia Konrads creates mind-bending site-specific installations in public spaces, sculpture parks and private gardens around the world. Her work is frequently punctuated by the illusion of weightlessness, where stacked objects like logs, fences, and doorways appear to be suspended in mid-air, reinforcing their temporary nature as if the installation is beginning to dissolve before your very eyes.

Here's a hyperlink to her website: http://www.cokonrads.de/