One of Britain’s most bizarre buildings, Rushton Triangular Lodge is the story of a man’s faith translated into brick and stone.

While imprisoned by Elizabeth Tudor’s Protestant Government, the staunchly Catholic aristocrat Sir Thomas Tresham dreamt up a banqueting house covered in cryptic codes and symbols. On his release, Rushton Triangular Lodge was born.

In this episode, Rory transports us to a world that is laced with intrigue, plots and clues - some of which are still to be cracked.