The 97ft tower is a fine sight and can be seen from far and wide, particularly at night when it is floodlit. On the southwest corner is a very unusual buttress with a large conical top: 'the Grimston Rocket' was well ahead of its time. Carstone arranged in long and short work can be seen at the west end of the nave dates to the Saxon period. The north aisle was added in the late 1200s. Notice the Roman bricks incorporated into the masonry. These were taken from the Roman villa some 450 yards away. It was excavated in 1905 and was the first such villa discovered in Norfolk. The porch was added in the 15th century. Inside, the shields on the nave roof depict emblems of the Crucifixion. The oldest pews, in the northwest corner, date to the 15th century and have fascinating carvings including various birds and animals. The transepts were built in the Decorated style in 1320-25. Don't miss the beautiful misericords in the chancel which include carvings of a dragon and a mermaid. The sea was much nearer in centuries past.