The main project "Heavenly Forests" will take place at the New Tretyakov Gallery from September 19, 2017 to January 18, 2018.

"For the first time in the history of the Moscow Biennale, it will last for four months," the report says.

52 artists from 25 countries, including Great Britain, Germany, Israel, India, Iraq, Iceland, Norway, Russia, USA, France and Japan have become the participants of the main project.

Among the participants there are Matthew Barney and Olafur Eliasson, who are creating new works specifically for participation in the Biennale.