Finnish builder Heikki Mattila has built the essential Finnish social space from LEGO — a wonderfully tranquil sauna. Paneled in wood with a stove heating up the rocks, I like to imagine that this sauna sits in a little cabin by a lake, the cool water ready to embrace one’s fiery body.

One of my favorite details is actually outside the sauna — a birch tree with a bird box glimpsed through the window.