For over a thousand years the banya has been a crucial institution to a wide variety of people: men and women, rich and poor, straight and gay, religious and atheist. The omnipresence of the banya makes it a lens through which to view many aspects of Russia history—hygiene, intimacy, sociability, the relationship of Russia to the West. The banya is full of contradictions. It can clean bodies and spread disease. It can purify and befoul. It can create community and provide a means of excluding others. The argument is based on thousands of sources ranging from archival documents and municipal regulations to idioms, films, art, cartoons, memoirs, diaries, songs, novels, poems, and plays. Inevitably, some aspects of Russia’s past come through stronger than others in these sources. But, taken together, they provide a brand new portrait of the institution of the banya and of the history of Russia.