On the Caribbean Sea, Colombian firm Plan B Architects has produced a new kind of Passivhaus -- a bioclimatic building with a roof, but no walls.
We also have an old railway car transformed into a beautiful garden, artists' responses to global warming, an ode to cheese, a fancy new electric bike, and more in our roundup of the best images on TreeHugger this week.
An Unconventional Home
World-renowned for their work in Medellin, especially for the Orchid House at the Botanical Garden
, Plan B Architects is busy and keeps coming up with great projects.
One of their latest is this wall-less house in Rio Cedro, a city located by the Caribbean Sea, 200 miles north from Medellin.
Photo: Sergio Gomez