The Triangular Lodge was commissioned by Sir Thomas Tresham and constructed on his estate, Rushton Hall, between 1593 and 1597.
It is a three tired triangular shaped building, each side measuring 33 feet in length. The three levels have three windows on each side with a different ornate design on each level.
Each side is capped with three gables and the whole building is topped by a central triangular chimney.
Below the gables on each side is a Latin quote 33 letters in length taken from biblical texts.
On each gable is a 3 x 3 foot plaque upon which are carved esoteric emblems such as the seven eyes of God, the Pelican in her piety and a seven-branched candelabrum. Inside the Lodge the 3 levels, from the basement to the upper level, are connected by a winding stair-case of 33 steps.