Contaminar stacks concrete layers to enclose twisting Portuguese home

Warping layers of glass and concrete have been stacked to form Quinta do Rei, an angular four-storey home designed by Portuguese studio Contaminar.
Located at the highest point of the Portuguese city Leiria, the residence was designed to function like a watchtower and features long spans of windows that frame views of the surrounding landscape.
"The principle of this project was to create a glass house with a 360-degree view, which functions as a lighthouse or a watchtower, because the plot is l