I don’t remember if I found the Open Door Bookshop on my first or second visit to Rome, but I do recall meeting the store’s founder the writer and journalist Charles Nopar. Secluded on a lovely street in the picture-postcard Trastevere neighborhood, the Open Door is an Aladdin’s cave of treasures for book lovers, packed floor to ceiling with secondhand and antiquarian titles. Although the forty year-old bookstore specializes in English language books, you can discover some great possibilities in Italian and French as well. The only problem is that you won’t want to leave and get back to your tourist itinerary once you start browsing.