Classical music at the Rudolfinum, anytime and for free? Sure, no problem.
To the left of the entrance to the beautiful Rudolfinum building is the free accessible Jiří Bělohlávek Listening Lounge. (Jiří Bělohlávek was one of the greatest Czech conductors, he not only conducted the Czech Philharmonic and other Czech orchestras, but also the New York Philharmonic, the Boston Symphony Orchestra, and the Berliner Philharmonie.)There you can put on headphones, listen to music, look out the window at Prague Castle and charge your mobile phone in this air-conditioned room.
It`s open daily Monday to Sunday from 10 a.m. to 6 p.m.