Inverse and Dualverse Skyscraper Concept

A skyscraper is a tall continuously habitable building having multiple floors.

 An inverse skyscraper is a tall habitable building, just like a regular skyscraper, that is built underneath the ground. In simple words, it is built downwards instead of upwards.

A dualverse skyscraper is a combination of both a skyscraper and an inverse skyscraper. It’s built both upwards and downwards.