Heritage Open Day: Two porticoed classical towers, which stood at each end of a grandiose but highly unconventional Georgian church, designed by Robert Adam in 1776. Even in its ruined state Mistley remains an unusual and interesting site. The towers are built in rendered brickwork with decoration in Portland stone. Tuscan porticos project from the outer sides, topped by small lantern domes. The eastern tower was originally the chancel of the church and inside you can still see its painted commandment boards and a painted representation of the Holy Trinity on the ceiling. The western tower is identical internally, though without the painted decoration.