Six million people visit Prague Castle each year. Here is the story of how this ancient citadel was transformed after World War I from a neglected, run-down relic into the seat of power for independent Czechoslovakia-and the symbolic center of democratic postwar Europe. The restoration of Prague Castle was a collaboration of three remarkable figures in twentieth-century east central Europe: Tomas Masaryk, the philosopher who became Czechoslovakia's first president; his daughter Alice, a social worker trained in the settlement houses of Chicago who was founding director of the Czechoslovak...