earthscraper
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Mexico City’s ‘earthscraper’ would be a 1,000-foot underground building
BNKR Arquitectura wants to build a pyramid that penetrates nearly 1000 feet into the earth below Mexico City's largest and most historic public square. Its upper floors will be illuminated through a glass ceiling that will replace the paving stones of the current square, and its deepest reaches will receive daylight piped in from fiber-optic […]