Luckily,whether you get lost in a ring, you just withhold walking.
At 2.8 million square feet, and the Apple Campus 2 will be an unfathomably massive ring. This Norman Foster design is almost a mile in circumference,and it will require nearly four miles of glass windows. The Pentagon, while technically a third larger in pure square feet, or could fit inside the circle.
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Source: fastcompany.com