Japanese architect Makiko Tsukada has completed a house in Yokohama with a cave-like interior that opens out to one of two rooftop lawns (+ slideshow). More about Makiko Tsukada's Grass Cave House features rooftop lawns and a dark interior
Seven concrete fins provide a green roof that collects rainwater at this new engineering facility for a wastewater treatment plant in Portland, Oregon, by local firm Skylab Architecture (+ slideshow). More about Water treatment facility by Skylab Architecture features a roof of grass-covered fins
A layer of grasses, herbs and flowers blankets the roof of this hump-shaped house near Reims, France, by architect Patrick Nadeau (+ slideshow). More about Hump-shaped house covered in plants by Patrick Nadeau
A knot-shaped rooftop will be used as a vegetable garden at this kindergarten by Vo Trong Nghia Architects that's under construction in Dong Nai, Vietnam (+ slideshow). More about Farming Kindergarten by Vo Trong Nghia Architects
A plant-covered twisting tower shaped like a DNA strand by Belgian architect Vincent Callebaut is under construction in Taipei, Taiwan (+ slideshow). More about Agora Garden by Vincent Callebaut
Brooklyn-based Caliper Studio has renovated the former home and studio of the late American pop artist Roy Lichtenstein, adding a rooftop sculpture garden and a pair of "eyebrow-shaped" skylights. More about Roy Lichtenstein residence and studio by Caliper Studio
This crematorium in Seoul by Korean firm HAEAHN Architecture folds up from the landscape and curls around a peaceful courtyard and pool of water. More about Seoul Memorial Park by HAEAHN Architecture
A cedar-clad house near Seoul by Korean architects AND spirals up from beneath the ground. More about Villa Topoject by AND
Manchester firm Ian Simpson Architects have won a competition to design houses inside redundant water tanks in Lancashire, UK. More about Barnacre Equilibrium Tanks by Ian Simpson Architects
Here's a house with gardens on all three levels designed by Singaporean studio Guz Architects on Santosa Island, Singapore. More about Sky Garden House by Guz Architects
Architects Ooze of Paris and Rotterdam extended this Rotterdam residence by wrapping a new faceted skin over the house's existing collection of buildings and extensions. More about Villa Rotterdam by Ooze
British artist Mark Merer has completed this pointy studio for himself and his wife in Somerset, UK. More about Welham Studio by Mark Merer
This residential building in Copenhagen with sloping green roofs by Danish architects BIG will be completed in October, and has just won the 2010 Scandinavian Green Roof Award. More about 8 House by BIG
This earth and plant-covered hump is a house by Paris architect Patrick Nadeau, currently under construction in Reims, France. More about La Maison-vague by Patrick Nadeau
Lighting designer Bruce Munro has completed his Field of Light installation at the Eden Project in Cornwall, England. More about Field of Light by Bruce Munro 2
Brooklyn architects Solid Objectives - Idenburg Liu (SO-IL) have designed a rooftop landscape of allotments to showcase green roof technologies on an industrial building in Queens, New York City. More about Sunnyside Up by SO-IL