It might not be the friendliest place in town, but the Illy Espresso Bar on Mlynska is an Olomouc institution and for good reason. There is more than simple shots of caffeine on offer, with an impressive list of spirits, cocktails and cakes for all tastes and preferences. It is also open as good as 24 hours a day, for those looking for a cup of the hot stuff at three in the morning.