This prefab sauna is absolutely extraordinary on so many levels.

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credit: Partisans

Then there is the way it is made, carved out of big chunks of wood on a CNC router. The architects describe it on their website:

Challenging the standards of current practices in the construction industry, we worked directly with a millwork and steel fabrication partner on every detail. Together, we developed a new process of fabrication; utilizing state of the art 3-D technology to scan, model and build the Grotto.

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