If you love history and want to discover great sites during your visit in Paris, give the Arènes de Lutèce (‘Arenas of Lutetia’) a try. Totally off-the-beaten-path, the Arenas were a truly unexpected highlight.
If you are visiting the Latin Quarter, take a moment to stop by the Grand Mosque of Paris and/or take a cup of tea and traditional pastries in its café. Do not forget to visit the gorgeous garden. You can also find a library, a tearoom, a restaurant and a hammam in the premises of the Mosque. It’s off-the-beaten-path but definitely worth a visit!