The Metropolitan Organisation of Museums of Visual Arts of Thessaloniki – MOMus was born in 2018 from the merger of four Thessaloniki-based museums/art venues (the Museum of Modern Art - Costakis Collection , the Museum of Contemporary Art - Macedonian Museum of Contemporary Art and State Museum of Contemporary Art Collections , Thessaloniki Museum of Photography , the Experimental Center for the Arts as well as the Museum Alex Mylona in Athens. The intention was to create a single, large, integrated public cultural institution, whose aspiration is to leave its mark on international modern and contemporary art, photography, sculpture and the experimental arts.

The founding of MOMus followed a years-long period of concentrated effort, driven by the steadfast, shared ambition of creating synergies and setting common goals for the promotion of contemporary Greek culture at the local, national and international level.