castles in Spain

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castles in Spain

Dreams, hopes, or plans that are impossible, unrealistic, or have very little chance of succeeding. He keeps talking about how he'll move to Los Angeles to be a famous actor, but it's just castles in Spain if you ask me. You need sound financial advice and a strong plan if you're going to start your own business—it can't be all castles in Spain.
See also: castle, Spain