Sproge kyrka

The medieval stone church consists of a rectangular nave, a narrower apsidal chancel and a west tower, built mainly of grey limestone. The nave and chancel date from the first half of the 1200s, while the tower was added rather later, around 1300, its pointed-arch sound openings among the least altered medieval features of the building. A stone slab above the south portal bears the date 1058, which is thought to refer not to the present stone church but to an earlier timber church that once stood on the site; fragments of oak planking from that earlier building have been recovered and are now kept at Gotlands fornsal.

The church's appearance today owes much to a substantial rebuilding carried out in the 1830s and 1840s under the incumbent Per Wallgren. The roof was lowered and tiled, large new round-arched windows were opened up, and the medieval south portal was moved. Inside, the original four cross-vaults of the nave, once carried on a single central pillar, were replaced by the wooden barrel vault still seen today; the carved capital from that pillar now lies in the churchyard, and other stones from it were reused as gateposts in the churchyard wall.

Three thirteenth-century grave slabs, once outside in the churchyard, are now set into the chancel floor. One, on the north side, is known locally as the "plague stone", remembered as the slab on which all the parish's survivors of the 1710–11 plague were said to have been able to stand together — a striking, if hard to verify, local tradition.

Among the furnishings, an oak triumphal crucifix dates from the 1300s, and the sandstone font from the 1600s. The altarpiece was painted in 1669 by Johan Bartsch the Younger, and the pulpit dates from the 1800s. The mechanical organ was built in 1901 by the Stockholm firm Åkerman & Lund.

Twentieth-century restorations, notably in 1965 under the architect Olle Karth, softened some of the 1830s changes internally — new limestone floors were laid, the gallery was removed, and the font and organ were repositioned — while the exterior has kept its early nineteenth-century character. Further conservation work followed in 1995 and again in 2019–2020.