Want a REALLY fabulous experience?
Go to Eretz Yisrael. Even if you’ve been there before, spend those 3 days in a place you never really visited before (at least not in depth), like maybe the Golan Heights or the Galil. Even if you’ve been all over Eretz Yisrael 50 times, NO place compares to it.
Why would you want to go to any of the increasingly anti-Semitic, yishmaeli-overrun countries in Europe when you have your own beautiful country to see.