<Ul> <Li> Presidential Palace </Li> <Li> Villa Syli (official guest house) </Li> </Ul> <Li> Villa Syli (official guest house) </Li> <Ul> <Li> Belle Vue (demolished; former summer residence of the President) </Li> </Ul> <Li> Belle Vue (demolished; former summer residence of the President) </Li>

Which is the largest official residence in the world