Madrid and Vienna
Madrid and Vienna have one thing in common, great food markets. 10 minutes walk south of the San Miguel market is a huge flee market near the Latin quarter on Sundays, with lots of street musicians, like the Dawlins.
The Vienna Naschmarkt is great for inexpensive food like 12 Oysters with Champagne for 20 €. China town is almost next door, where you'll find rare ingredients. The Margaretenviertel is next to it and turned out to be our favorite district.