 Many of the original Royal Navy 18th and 19th century buildings in the Dockyard were destroyed in the 1917 Halifax Explosion; others were demolished in World War II to make way for machine shops, stores buildings and drill halls needed to man and maintain the many escort ships being commissioned during the crash expansion of the Royal Canadian Navy during the Battle of the Atlantic.Only one residence from 1814 and the Admiral's Residence from 1816 survived.The Admiral's residence in now the Maritime Command Museum.