I'll be in Paris for 4 days before heading to Barcelona and Lisbon. I've got some good ideas about Barcelona and Lisbon, but because Paris is so big I wanted to hear some suggestions. Staying just off of Bastille square but looking forward to walking a lot of the city to hit the obvious stuff. Been told to check out rue de vielle du temple and rue de francs bourgeois for shopping in Le Marais - any other suggestions? What about any low to mid price range restaurants? Also open to bar and club suggestions. I'm a big architecture fan if there is anything not on the normal tourist checklist that you would recommend, I'm all ears. Thanks.