@RickGaehl@mstdn.social There is the Triangular Lodge in #Northamptonshire, which symbolises the #HolyTrinity, & was designed & built by one of the Gunpowder Plotters, Sir Thomas Tresham, see: https://www.english-heritage.org.uk/visit/places/rushton-triangular-lodge/; https://en.wikipedia.org/wiki/Thomas_Tresham_(died_1605)).