Billum church is one of the Ribe diocese's tufa churches. Late Romanesque aspe, chancel and nave. late medieval vestry and porch. The facade is elegantly ornamented with round-arched fillings and half-columns. A few frescoes, among other a coat-of-arms frieze on the wall of triumph. Many medieval figures, for example from the original high altarpiece from ca 1500, and a crucifix group on the chancel arch from ca 1300.