in
Barcelona The most well-known modern example is a sculpture designed by the American artist
Alexander Calder, commissioned by the
Spanish Republican government for the
1937 World Exhibition in Paris. The artwork is a memorial to the siege of
Almadén by
General Franco's troops; at the time, the region supplied 60 percent of the world's mercury. 's
Guernica in 1937 The fountain was a sculptural counterpart to
Guernica,
Pablo Picasso's protest against
Spanish Civil War atrocities. Calder's
Mercury Fountain is now at the
Fundació Joan Miró in
Barcelona, displayed behind glass to control
toxic mercury vapors. ==See also==