It will be on view until 15 July, 2011.

Installed by 90 people over a five day period, the incredible optical illusion is 100 meters long and takes up 1200 square meters of lawn. It is covered in 300 square meters of sedum. Designed to rise above the heated rhetoric of scientists and builders and other stakeholders, Qui Croire? invites people to simply question the role that nature plays in their lives.

The public will be able to visit this mind-bending land art project at Paris City Hall until 15 July, 2011.

+ François Abélanet

+ Paris.Fr

Via Designboom