Sentences with Castle In The Air

After retirement, she decided to turn her lifelong castle in the air into a reality by traveling the world.

The inventor spent years working on a groundbreaking idea, which some considered a mere castle in the air.

Despite facing setbacks, the entrepreneur held onto his castle in the air and eventually built a successful business.

The scientist's colleagues dismissed his theory as nothing more than a castle in the air until it was proven correct.

Mary often daydreamed about her castle in the air where she lived in a world filled with magical creatures.