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This city spans 45 square kilometers of abandoned limestone mines, transformed into a naturally climate-controlled space where more than 1,600 people work daily. The sustainable structure holds unique businesses, maintaining a comfortable and stable temperature year-round.
Underground Science City, Singapore
Singapore’s pressing land shortage led to the creation of the Underground Science City, housing research labs, offices, and amenities for over 4,200 professionals. This unique facility highlights the innovative strides cities can take beneath the earth.