Photo by Ilya wikihelper, via Wikimedia Commons (Public domain)
🇨🇭 Switzerland · Vals, Graubünden
Photo by Ilya wikihelper, via Wikimedia Commons (Public domain)
🇨🇭 Switzerland · Vals, Graubünden
♨ Temperature
36°C
⛰ Altitude
1252 m
⚗ pH
7.6
💧 TDS
380 mg/L
🌊 Flow rate
15 L/s
📅 Established
Therme Vals building opened 1996; 7132 Hotel relaunched 2013
✓ Verified on 2026-07-22
The village of Vals in Switzerland's Graubünden canton is home to one of the most discussed buildings in contemporary architecture: the Therme Vals, designed by Peter Zumthor and completed in 1996. Zumthor's bathhouse is built almost entirely from Valser quartzite — the local grey-green stone quarried from the mountain above the village — and is partially embedded in the hillside, creating an experience of bathing within the geological body of the Alps. The interior sequence moves through chambers of different temperature and character — the flower bath, the sound bath, the cold cave, the outdoor pool open to the Alpine sky — each lit through narrow slits and defined by the heavy, precise geometry of the quartzite construction. The building is considered one of the masterworks of phenomenological architecture: it is designed not to be appreciated visually but to be felt through the body moving through heat, cold, stone, water, light, and silence. The 7132 Hotel — the surrounding luxury hotel named after the village's postal code — provides accommodation on site and exclusive late-night access to the therme after public hours. Zumthor was awarded the Pritzker Prize in 2009, and the Therme Vals is widely cited as his definitive work.
| Fluoride | 0.8 mg/L |
| Bicarbonate | 188 mg/L |
| Calcium | 72 mg/L |
| Sodium | 18 mg/L |
| Silica | 24 mg/L |
| Sulphate | 28 mg/L |
Vals is a Romansh-speaking village in Graubünden — Switzerland's most linguistically complex canton, with three official languages: German, Italian, and Romansh. The Valser Tal is a deep Alpine valley settled since medieval times, its isolation shaping a distinct mountain agricultural culture. The Valser quartzite used throughout Zumthor's building comes from the mountain directly above the village and has been quarried locally for centuries.
The Therme Vals has generated an unusual cultural phenomenon: architecture pilgrims who travel specifically to experience the building as a bathing experience, not as a visual tour. The building's deliberately limited access — no photography permitted inside, strict capacity limits — reinforces the idea that it should be experienced rather than consumed visually. Peter Zumthor's architecture is rooted in the phenomenological philosophy that space should be understood through bodily presence in it, not through image reproduction. This makes Therme Vals arguably the only major contemporary building where the primary mode of engagement is through the skin rather than the eye.
The thermal spring flows from the Valser quartzite mountain aquifer under natural pressure. The building's thermal mass — enormous walls of dense stone — reduces heating loads significantly. The mineral water is bottled commercially as Valser mineral water, one of Switzerland's best-known spring water brands, supporting the local economy.