Their "Open Churches Trust" published a real collection of open churches, i.e. more than 11,000 of the 16,000 existing ones. For each one, a brief commentary, a portrait of the church, its location. This initiative of a network of open churches existed in other countries but not in Belgium. 

Marc Huynen then gathered around him a few people from different professional and philosophical backgrounds but all interested in the project: to open our churches so often closed, and to meet the desire of many, whatever their convictions, to enter religious buildings for spiritual, cultural or simple curiosity reasons. People from the cultural, legal, political, religious, communication, management and legal worlds, all convinced that we must make our churches known and welcoming, are participating in the launch of the project.

"To open our churches, which are so often closed, and to meet the desire of many, whatever their convictions, to enter religious buildings for spiritual, cultural or simple curiosity reasons."