A man works on “Long Ma”, a creation by La Machine production company, during a media visit to “A Journey to Nantes” (Le Voyage a Nantes) art festival in Nantes, France, June 30, 2015. The art festival will run from July 3 to August 30. (Photo by Stephane Mahe/Reuters)

A man rides his BMX on the “Skate O Drome”, a creation by Collectif Fichtre, during a media visit to “A Journey to Nantes” (Le Voyage a Nantes) art festival in Nantes, France, June 30, 2015. (Photo by Stephane Mahe/Reuters)

Men walk near a sculpture entitled “Resolution des forces en presence” by French artist Vincent Mauger during a media visit to “A Journey to Nantes” (Le Voyage a Nantes) art festival in Nantes, France, June 30, 2015. (Photo by Stephane Mahe/Reuters)

A woman looks at works at the Temple du Gout during a media visit to “A Journey to Nantes” (Le Voyage a Nantes) art festival in Nantes, France, June 30, 2015. (Photo by Stephane Mahe/Reuters)

Japanese artist Taturo Atzu alias Tatzu Nishi talks to the media during a media visit to “A Journey to Nantes” (Le Voyage a Nantes) art festival in Nantes, France, June 30, 2015. (Photo by Stephane Mahe/Reuters)

People stand near a creation by Pick Up Production during a media visit to “A Journey to Nantes” (Le Voyage a Nantes) art festival in Nantes, France, June 30, 2015. (Photo by Stephane Mahe/Reuters)

People stand near a creation by Japanese artist Taturo Atzu alias Tatzu Nishi talks to media during the press visit of the “A journey to Nantes” (Le Voyage a Nantes) art festival in Nantes, France, June 30, 2015. (Photo by Stephane Mahe/Reuters)

A man looks at “Portrait de femme” of Francois II Pourbus during the media visit of the “A journey to Nantes” (Le Voyage a Nantes) art festival in Nantes, France, June 30, 2015. (Photo by Stephane Mahe/Reuters)

A man looks at a creation by french artist Aymeric Caulay during the media visit of the “A journey to Nantes” (Le Voyage a Nantes) art festival in Nantes, France, June 30, 2015. (Photo by Stephane Mahe/Reuters)