The Triangular Lodge at Rushton in Northamptonshire is an eccentric house built by Sir Thomas Tresham between 1593 and 1597.

Tresham was a devout Roman Catholic at a time when Catholicism was banned.

He was imprisoned for 15 years in the late 16th century for refusing to become a Protestant.

The Lodge became a secret demonstration of his faith, and he used it as a bolt-hole where he could practice his religion without fear of persecution.

Everything is the Lodge is arranged in threes to echo the Holy Trinity.

There are three floors, three triangular gables on each side of the building, and trefoil windows.

The front entrance bears the inscription 'Tres Testimonium Dant' (translated as 'there are three that give witness'), a Biblical quotation referring to the Trinity.

The inscription is also intended as a pun on Tresham's name - his wife called him 'Good Tres' in her letters.

Today the lodge is a tourist attraction.