First floor converted to sunken courtyard pictures

Quick answer：

Sunken courtyards are a modern architectural design feature that involves lowering the level of the ground floor to create a courtyard space below it. This design can enhance privacy, provide a more secluded outdoor area, and often incorporates greenery. The pictures you are referring to likely depict the transformation of a building's first floor into such a sunken courtyard, showcasing the architectural details, landscaping, and the overall aesthetic of this space.