You don't have to keep a secret: Library and Museum of Freemasonry

THE freemasons are supposed to be a secretive lot. I think they still are, but not if you take a genuine interest.
          Their grand library and museum has mysterious fixtures and fittings, symbols and signs. It is a memorial to the freemasons who died in the First World War, the third building on the site since 1775.
          Many occultists, spiritualists and others during the centuries claimed the symbols in the building had magic powers. Not the freemasons. Their symbolism is puzzling, but efficient and friendly, and outsiders merely borrowed it to imagine occult mysteries. Much of it came anyway from ancient civilizations.

Inside the Masonic Temple, the stare that is not rude, but mysterious and intriguing: photo courtesy of Grand Temple, London

          
Their library is welcoming and extensive on the subjects that are supposed to be private: secret traditions and even more secret societies.
          The first time I entered their vast stone temple of a building in Great Queen Street, on the edge of London's Covent Garden, I expected a hushed greeting, but got a hearty welcome.