Conceal lighting and curtain rods in your plasterboard ceiling by allowing a void like Corben Architects have done here. Lennox Street House by Corben Architects.
Reno Rumble Kitchen Reveals - Mid Century Modern Kitchen - Freedom Kitchens - maybe something like that around island at pillar end
Tribeca's Franklin Place Officially Back, With Renderings - Unarrested Development - Curbed NY
Marble waterfall island in a kitchen by Amber Interiors - 3 pendant lights above