Image by Jean-Pierre Lescourret Getty Images

Soaking in the art nouveau Gellért Baths, open to both men and women in mixed sections (bring a swimsuit), has been likened to taking a bath in a cathedral. The six thermal pools (one outdoors and one a swimming pool) range in temperature from 35°C to 40°C.

The water is said to be good for pain in the joints, arthritis, blood circulation and asthmatic disorders.