Monaco is the most expensive, followed by London, according to research by Knight Frank and Citi Bank.
As far as Spain goes, South-West Mallorca is the most expensive place, 33rd in the world ranking, followed by Madrid at 36, and Ibiza at 47.
Monaco is the most expensive, followed by London, according to research by Knight Frank and Citi Bank.
As far as Spain goes, South-West Mallorca is the most expensive place, 33rd in the world ranking, followed by Madrid at 36, and Ibiza at 47.