Takei-Nabeshima-Architects (TNA) architects have designed a striking mini-tower on spec for a planned community in the town of Karuizawa, some 185 miles northwest of the Japanese capital. The Ring House is wrapped in rings of glass and wood and has an uninterrupted 360-degree view of the forest.In an area that was dark, on uneven land and with no neightbours this plot of land was originally unmarkable. But TNA Architects were undeterred by the conditions and set about designing the house. TNA designed rings around the facade so that areas of private space and utilities could be met. The height of each ring was decided by the function concealed behind it. The glass between the rings allow you to look straight into the forest, so the whole house appears to dissolve into the forest.Built on Owners' Hill, a resort in the Karuizawa forest near Tokyo, Ring House occupies one of the hundred or so plots set aside for city dwellers to build weekend retreats.