The Holy Cross Church has a rather plain exterior and although quite large inside is less ornate than several other churches in Warsaw. Like so many others, this church was completely destroyed during WWII and rebuilt after the war (the Poles deserve lots of credit for the tremendous work in reconstructing and rebuilding after the war!). What is most notable about this church is that its is the resting place of Chopin’s heart, which is interred in an interior pillar of the church (you can't really see the heart, but a sign indicates where it is placed. The church is also known for having the largest pipe organ in Warsaw,