Renowned for its large size in the surrounding low-lying landscape, it is commonly known as the Cathedral of the Fens.

It was considerably restored in 1890 however the spire to the tower was unfinished and left as a stump.

The tower, 86 feet to its parapet, has Early English lower stages and Perpendicular upper.

Also in the south aisle is a damaged 13th century effigy of a cross-legged knight, conjectured to represent Falco D'Oyry,[3] and Jacobean alabaster monuments of Adlard Welby, his wife Cassandra and their five children, erected in 1605.

[4][5] At the east end of the north aisle are the remains of a 14th-century Jesse window.