josephalopod: 1969 plans to build an underground nuke-proof Manhattan. The author of this plan speculated on building this spherical city in Manhattan bedrock—a structure which so far as I can determine would have a volume of 1.2 cubic miles (5
josephalopod: 1969 plans to build an underground nuke-proof Manhattan. The author of this plan speculated on building this spherical city in Manhattan bedrock—a structure which so far as I can determine would have a volume of 1.2 cubic miles (5
