The display of Picasso's work at (Republican) Spain's Pavilion during the 1937 World's Fair in Paris reflected the effect on public consciousness. The painting, later adopted as a symbol of Basque nationalism during the Spanish transition to democracy, was displayed near "Mercury Fountain," an overtly political work by Alexander Calder that incorporated mercury from the mines of Almadén. Today it resides in Museo Nacional Centro de Arte Reina Sofía in Madrid. A tapestry copy of Picasso's "Guernica" is displayed on the wall of the United Nations building in New York City, at the entrance to the Security Council room. It was placed there as a reminder of the horrors of war.