Helena was an art installation by Marco Evaristti originally at the Trapholt museum in 2000.

[3] A researcher remarked that the exhibit started intense discussion about animal rights and artistic freedom.

[4] The director of the museum was charged with the crime of animal cruelty for hosting the exhibition, but did not receive a conviction.

[5][6] In 2008, Evaristti announced that he and musician Kenneth Thordal were planning another artwork involving goldfish, called FIVE2TWELVE.

At this exhibition, the body of American death row inmate Gene Hathorn Jr. would be turned into freeze-dried fish food and placed in front of a pool of goldfish, and the audience would have to choose between feeding the fish with freeze-dried human meat and letting them starve to death.