Many years ago, the King of Georgia discovered the sulphur springs in Central Georgia and decided to build a city surrounding them. And so, Tbilisi (warm place) was born. These days the sulphur springs are somewhat of a tourist attraction and many people visit daily for a soak, scrub and traditional massage beneath the domed roofs.
Tbilisi is built on top of thermal springs. The water the comes from the contains sulphur and is around 40°-50°C.