Lubyanka Square in Moscow was to become notorious after Tolstoy's lifetime as the site of the headquarters of the Communist Party's secret police service, variously called the Cheka, the OGPU, and the KGB. The building also housed a prison where prisoners would be taken after arrest, on their first steps towards the Gulag. Today the same building houses the headquarters of the FSB. In 1901, shortly after he was excommunicated by the Russian Orthodox Church, Tolstoy was walking in the Lubyanka Square when he stumbled into a demonstration. When the crowd realised who was with them they cheered for him, and mobbed him with such as frenzy of approval that Tolstoy had to be rescued from their affection by the police.