ATHENS - Celebrated Argentinean artist Adrian Villar Rojas has transformed the outdoor space of the Athens National Observatory opposite to the Athens Acropolis into a "jungle", posing questions regarding disappearance, extinction, the passage and volatility of time.

Rojas' installation on the Hill of the Nymphs, entitled the Theater of Disappearance, is the first project he was allowed to set up in an archaeological site worldwide, according to organizers of the Greek Neon nonprofit that commissioned the work.

It is also the first time Greek authorities have given the green signal for such a major project at an archaeological site.