The underground of Hot Spring colonnade
The Hot Spring colonnade is obviously a place of interest. The building itself is a functionalistic monument from the seventies of the 20th century and is very dominant. The marble and ferroconcrete building where the spring reaches the height of 12 metres is really worth visiting.
You may also explore its underground. During the excursion with the guide you can take a look at places where the minerals take over the old pipelines, you can see the thermal springs themselves or some precious organisms living in the mineral water locations.
For more details see this website .