The Caldea Thermal Center was opened in 1994. The French architect Jean-Michel Ruols worked on the design of the unique center. It is impossible not to notice this building - the feeling that ice blocks have grown just in the middle of the city. The architect wanted to create a building different from the classical canons, and he definitely succeeded. A visit to Caldea (order of prices to get your bearings) - standard 3 hours cost 37 euros (or 34.50 euros if pre-purchased online).→