Two images by Daniele de Nigris

Raven over Tintagel

Raven over Tintagel

by Neil Rhodes

http://im-possible.info/english/art/montage/neil-rhodes.html#1

Parallel bars

Parallel bars

by Vicente Meavilla

http://im-possible.info/english/art/vicente/for-children-9.html#6

Photo of impossible figure by Daniel Abolafia

http://im-possible.info/english/art/sculpture/daniel-abolafia.html

Bijzettafeltje met stekelbessen

Bijzettafeltje met stekelbessen

by Jos de Mey

http://im-possible.info/english/art/mey/mey11.html#93

Drawings by ContaminatedFaith

http://im-possible.info/english/art/pencil/contaminatedfaith.html

Centaur-knight

Centaur-knight

by Oleg Zhevelev

http://im-possible.info/english/art/computer/oleg-zhevelev.html#4