The international conceptual exhibition At the Moment, held on 23 April 1971, was conceived and realised by Nena and Braco Dimitrijević. The exhibition included works of the masters of international conceptual art. It was held in the entryway of 2a, Frankopanska Street in downtown Zagreb, the alternative exhibition space that Braco Dimitrijević had founded in 1970 and where he occasionally organised exhibitions. This alternative exhibition space preceded the opening of similar alternative spaces, first in New York and then all over the world.