Get in touch with your spiritual side and offer up your own prayer at Himmelev Kirke. Explore outside for a few moments or ask if you're allowed to join the next service.
When you've finished at this Roskilde house of prayer, why not check out Viking Ship Museum, Roskilde Cathedral, and Roskilde Domkirke? They're not very far from Himmelev Kirke and also popular with many tourists.