Budapest alone is home to around 10% of the country's thermal springs and has 19 spas. Three of them are centenarians, from the Hungarian neo-renaissance period: Széchenyi, Gellért and Lukács. Four of the five multi-century Turkish baths in the country are also present: Rudas, Kiraly, Veli bej and Rácz, which is currently closed. The city also offers eight green spa parks, known as "strandfürdő" in Hungarian, as well as eight Olympic swimming pools. Even if the city alone has plenty to attract tourists outside of the thermal baths, they bring an undeniable asset to Budapest that make it the envy of all of the other European capitals.