Birkett Castle, as it's been called from its earliest days, returned to the Doors Open circuit this year. It dates back to 1896, built on behalf of its first owner, Thomas Birkett, who was the mayor of Ottawa at the time. It is done in a Baronial Gothic style. It has served several purposes after Birkett's day, including as the Japanese embassy and the headquarters for the Canadian Boy Scouts. Since 1994, this is the embassy for Hungary.
A good deal of the interior decorating details are Hungarian, such as the maps, tapestries, china, or a bust of King Stephen I in the entrance. The woodwork in here is incredible.