Impossible sculptures

Brixe

These photos of LEGO^® impossible constructions were found at
http://www.brickshelf.com/cgi-bin/gallery.cgi?f=277319.

These LEGO constructions are not first at the site. See also LEGO Escher's buildings by Andrew Lipson "Ascending and Descending", "Belvedere", "Relativity", "Waterfall" and impossible construction of impossible LEGO arch by bbzippo.

The same impossible seatings was created by Nobuyuki Yoshigahara from wood.