The Admiralty Building is the former headquarters of the Admiralty Board and the Imperial Russian Navy in Central St. Petersburg, Russia and the current headquarters of the Russian Navy. The edifice was rebuilt in the nineteenth century to support the Tsar's maritime ambitions. The original design was a fortified shipyard which was later surrounded by five bastions and further protected by a moat. Until merger and relocation to the town of Pushkin in 1998 the building housed which since 1927 was named after Felix Dzierzhinski.