BILBAO.- From October 8, 2011, through April 15, 2012, the Guggenheim Museum Bilbao is hosting Serra-Brancusi , the most ambitious exhibition to date on the work of Constantin Brancusi (1876–1957) and Richard Serra (1938), two of the greatest sculptors of the 20th century. Organized by the Guggenheim Museum Bilbao in co-operation with the Fondation Beyeler Riehen/Basel, the show examines the connections between these two pioneers of sculpture through nearly fifty works, offering a unique overview of the period of over one hundred years in which modern sculpture developed. Brancusi, born in Romania and a resident of Paris from 1904 onwards, reduced sculptural forms to their bare essentials and, in so doing, laid the foundations of abstract sculpture. Half a century later, American artist Richard Serra redefined the effects of sculpture by creating minimalist steel pieces which literally draw the viewer into the wo