The Széchenyi Baths is one of Budapest's most popular thermal baths and one of Europe's best spas. It is worth a visit any time of the year and day, but on Saturday nights it is getting some pizzazz. A party series, called the Grand Budapest Bath Party (or Sparty), kicked off in February to bring electronic dance music and a mind-blowing visual experience while you party in the pools.
 
When? Every Saturday from 9:30 pm