At the entrance to the installation of 1,000 heart-shaped balloons printed with "Zagreb Energy" and was a Zagreb as a city with a million hearts. Inside the auditorium were 2,000 white balloons represented the Zagreb clear skies and clouds.
    The night before the launch, we filled the balloons with helium and transporting them to the Auditorium. Of course, under the coordination of all is made in the terms and raised as planned.

    "On 18.10.2015., The city of Zagreb was presented at the world exhibition EXPO in Milan many visitors as the" city with a million hearts ". Zagreb presented itself as a market town and the visitors had the opportunity to see how the Dolac market with a wide range of vegetables and fruits. the focus of the exhibition space was a "live" tree hornbeam, which was a Zagreb forests and nature, as a source of fresh air wider area. to stage the legalization is represented Zagreb visitors walk on the chestnut leaves in Zagreb, and at the door they were greeted by the installation of 1000 red heart-shaped balloons as a reminder of gingerbread hearts, recognizable symbol of the city. Two thousand white balloons on the fringes of the exhibition space symbolized the Zagreb sky and circled in a display unit. "