Rotterdam was bombed back in 1940 and the only thing left standing with the church were the walls…read moreand tower. On Sunday it is only open for church services and opening times depends on meetings and special occasions. Outside of that you can visit the church for €4 or the church and tower for €7,50. I recommend taking the 300+ steps up to the top for the views. The church itself it's beautiful for the most part but the exhibits seemed out of place for this space.