Hidden openings, oversized portholes and apertures shaped like houses feature in this week's roundup of popular images from Pinterest, which showcases buildings that use windows as decoration.

The Guild, Indonesia, by RAW Architecture
Huge circular and semi-circular windows link this home and workspace by Indonesian architect Realrich Sjarief with its courtyard garden. One of them incorporates double doors, which fold open over a pool of water.
Find out more about The Guild ?

Orsi Khaneh, Iran, by Keivani Architects
This timber-framed apartment block takes its name from a traditional sash window made from latticed woodwork and stained glass, designed to reduce the impact of harsh sunlight and intense heat. Local studio Keivani Architects updated the design to add extra facets to the frames. Find out more about Orsi Khaneh ?

House Berhnheimbeuk, Belgium, by Architecten De Vylder Vinck Taillieu
This residence is entirely clad in grey tiles, except for a handful of irregular openings that function as windows. Belgian firm Architecten De Vylder Vinck Taillieu also left gaps in the roof, allowing a large tree to shoot through.
Find out more about House Berhnheimbeuk ?

Spiral Window House, Japan, by Alphaville Architects
Privacy wasn't a priority for the clients of this Osaka house, which is punctured with a succession of horizontal windows that resemble steps. Alphaville Architects arranged the openings to offer different views of the nearby Yodo River.
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