Will agree to try Pilsner Urquell at their brewery restaurants or
Lokal. Been awhile since I was there but that first sip of it was like yup, best beer ever too. Haven't been able to experience that feeling since haha. The North American canned/bottled varieties don't do it justice.
Edit: Not beer but I miss that old flavour of their national cola, Kofola. Tastes very communist.