Visitors enjoy thermal bath in open air pool in Budapest, Hungary

Visitors enjoy a thermal bath with a temperature of 38 degrees Celsius in the open air pool of Szechenyi Thermal Bath in Budapest, Hungary on Jan. 15, 2020. The number of visitors to Budapest's spas rose almost 13 percent year-on-year to more than 5 million in 2019, Hungarian news agency MTI reported on Friday. (Photo by Attila Volgyi/Xinhua)