A child climbs out of part of an installation by artist Carsten Holler entitled “Gartenkinder” during the VIP and press day at the Frieze Art Fesival on October 14, 2014 in London, England. Due to run from October 15-18, it is one of the largest art fairs in the world with visitor numbers in excess of 60,000. (Photo by Carl Court/Getty Images)

Two-year-old Robby Waley-Cohen plays with artist Carsten Holler's artwork “Gartenkinder” at the Frieze Art Fair in London October 14, 2014. (Photo by Luke MacGregor/Reuters)

A visitor poses with artist John Stezaker's artwork “Shadow” at the Frieze Art Fair in London, October 14, 2014. (Photo by Luke MacGregor/Reuters)

A visitor poses with artist Joyce Pensato's artwork “Mickey for Micky” at the Frieze Art Fair in London, October 14, 2014. (Photo by Luke MacGregor/Reuters)

A performer of artist James Lee Byers' artwork “Ten in a Hat”, wearing a replica of the original 1968 version, is pictured at the Frieze Art Fair in London, October 14, 2014. (Photo by Luke MacGregor/Reuters)

A visitor poses with artist Damien Hirst's artwork “Because I Can't Have You I Want You” at the Frieze Art Fair in London, October 14, 2014. (Photo by Luke MacGregor/Reuters)

A visitor passes artworks “Hanami” by Thomas Demand and “NGC 5892” (R) by artist Tomas Saraceno at the Frieze Art Fair in London, October 14, 2014. (Photo by Luke MacGregor/Reuters)

A visitor poses with untitled works by artist Sarah Crowner at the Frieze Art Fair in London, October 14, 2014. (Photo by Luke MacGregor/Reuters)

Sasha Burkhanova reacts to performers of artist James Lee Byers' artwork “Ten in a Hat”, a replica of the original 1968 version, at the Frieze Art Fair in London, October 14, 2014. (Photo by Luke MacGregor/Reuters)

A visitor passes artworks “Stack VII” by Michael Landy (L) and “Public Sculpture” by Alexandre de Cunha at the Frieze Art Fair in London, October 14, 2014. (Photo by Luke MacGregor/Reuters)

A visitor poses with artist Joyce Pensato's artwork “Red Chair (for Charlie)” at the Frieze Art Fair in London, October 14, 2014. (Photo by Luke MacGregor/Reuters)

Loring Randolph poses with artist Liam Gillick's artwork “Split Discussion” at the Frieze Art Fair in London, October 14, 2014. (Photo by Luke MacGregor/Reuters)

Visitors walk among artist Carsten Holler's art installation “Gartenkinder” at the Frieze Art Fair in London, October 14, 2014. (Photo by Luke MacGregor/Reuters)

A visitor poses with artist Jesus R. Soto's artwork “Cubo de Roma” at the Frieze Masters in London, October 14, 2014. (Photo by Luke MacGregor/Reuters)