If you want somewhere peaceful to spend a little time, head to Orum Church. This house of prayer offers a wonderful break from a busy travel schedule.
You're spoiled for sightseeing choice when visiting Hjallerup. Orum Church is an ideal place to kick off here, but there are plenty of other worthwhile places to explore. Dronninglund Kunstcenter, Hellum Kirke, and Dronninglund Storskov are not far from the house of prayer and will fill in your day nicely.