Hard and angular, often smooth and cool – this is how passers-by and commuters frequently see the city of Frankfurt. Those who settle here, ready to change their perspective see the city in the heart of Europe differently and become part of the pulsating, dynamic life of its streets. HART becomes HEART - a tribute to one of the loveliest and warmest cities in the world. Through the window of the Ono2, the HART installation appears incoherent and distorted. Only upon entering and pausing, does the true image of the city diorama become visible. The right viewing angle smooths the perspective distortion. Viewers can decide for themselves whether they want to take the Main metropolis to their hearts and open themselves to urban diversity.