‘Open House’ offers the opportunity to experience the unique architecture and is completely free. The activities of the Open House invites everyone to explore and understand the value of a space designed and well built. This event began in London in 1992, and since the hours ‘Open House’ is being introduced around the world: New York, Dublin, Galway, Tel Aviv and now Barcelona.

The Mies van der Rohe Foundation joins the international appeal to release Ai Weiwei.