There are over 100 museums in Paris, some of them quite unique, like the Musée de la Franc-Maçonnerie (16 rue Cadet, 9th). In France, the Grand-Orient is the oldest and most important Masonic brotherhood in continental Europe, created in 1728. The museum, first opened in 1889, is in a modern building that traces the history of freemasonry, showing the contribution of the lodges to the history of France, the origin of the symbols and rites, and the principles of Masonic initiation. Better than a Dan Brown novel! It’s reopening February 11th, and regular hours are Tues-Sat, 2-6pm, admission €6. While you’re there at Cadet, have a stroll around; lots of great new shops and cafés have opened in the past few years.