The Black Madonna in Czestochowa is the most sacred place in Poland, I am going there this year.
I’m sure you’ll have a wonderful time. The closest I ever got was...http://www.czestochowa.us/
We were in Czestochowa 8 years ago and saw the Black Madonna. Our tour was fortunate enough to be there during Mass that day. What a blessing,seeing that has been one of the spiritual highlights of our lives and we know it will be for you also.
A visit to Montserrat, Spain in also a wonderful experience and we highly recommend a trip there as well.
God’s blessing to you on your journey!