The Royal Park Hotel.

Hotel where Maxwell Smart and Agent 99 stay during their visit to London to assist Scotland Yard in their investigation of a series of murders committed by a wax figure of Jack the Ripper which has somehow been brought to life.

Max is later attacked at the hotel by a wax figure of a Werewolf dispatched by Raoul Duval of Duval's Cave of Wax who has become the prime suspect in the case.

[Episodes #127: "House of Max" and #128: "House of Max, conclusion".]