Pairs Work Better than Singles. In 2008, AnneMarie Maes and her collaborators installed several hives on the rooftop of Okno (Russian for ‘window’), an artist-run space in an old industrial flour mill on the west side of the Brussels canal. A year later, she installed two more hives 400m due east on the roof adjacent her studio. Urban beekeeping had not been practised since the 1950s, so potential beekeepers faced huge learning curves. Her primary focus was to observe the bees to see whether they might meet up with bees inhabiting Okno’s rooftop garden.