As part of a project related to coffee, I try to find nice cafes in cities I visit around the world. I maintain a list of them here. Please note this is work in progress and do send me suggestions for cafes you think I should visit (anywhere in the world!). I like these cafes because of their atmosphere (and yes, the coffee is good), but I'm not making wild claims about the quality of the coffee.

I've already received several great cafe suggestions from friends (in particular, embarrassing me for not knowing San Francisco very well), and I compile them here.

Europe

    Italy

• Caffe Del Doge, Venice. In Palo Alto we have a Caffe Del Doge that is one of my favorite spots. This one is the original joint in Venice. A bit pricey, but fun.
  
• Bar Pasi, Trento. Just around the corner from the Piazza Duomo. They also have some great hot chocolate drinks of many flavors.
  
• Cappa Cafe, Verona. This one is also a wine bar. Very cozy place.
  
• Pedrocchi Cafe, Padua. A bit on the formal side, but still nice and in a great spot in downtown Padua.
  
• Cafe San Marco, Trieste 

     Denmark

• Cafe Europa, Copenhagen. I just happen to get here every time I'm in Copenhagen. Good eats too.
  

 
    Czech Republic

• Cafe Grand Orient, Prague. This one was recommended by the New York Times. It's above a Cubism museum in central Prague. Great cakes, of course. And check out Bolzano's house accross the square.
  
• Cafe Slavia
• Cafe Montmartre
• Cafe Louvre

New Zealand

• Chocolate Boutique, Parnell, Auckland. I stumbled upon this one whiel walking aroudn Parnell. This apparently happened to Bill Clinton a few years ago too (he was heading into the restaurant next door and veered into the cafe). It's actually a chocolate store, but it also serves coffee in a few tables nicely tucked in various corners. 

Israel: Israel has many great cafes and expanding this list is one of my top priorities.

• Arcaffe --  this is actually a chain of cafes, but they're generally really nice. And most importantly, the have the macchiatone on the menu! (they serve in a glass cup). There is even one at the Ben Gurion Airport, which makes for a nice breakfast before an early morning flight.
  

United States

     Seattle

• Zoka Cafe. There are at least two of these. One next to the University of Washington and the other on 56th St.
  
• Vivace espresso bar. This one is on Capitol Hill -- great atmosphere.
• Cafe Allegro. This one is right outside UW. You need to go by a few garbage cans to get to it, but let that not hold you back. It's on a back alley from University Avenue.
  

      San Francisco & SF Bay Area

• Cafe Del Doge -- University Avenue. My favorite hangout these days (I take my son there every sunday)
• Coupa Cafe -- 538 Ramona Ave in Palo Alto. A very Silicon Valley hangout. Coffee is not as great as in the others, but it's a fun place to sit and they have good eats and chocolate.
• Cafe Borrone -- Menlo Park. Nice Silicon Valley hangout. Next to Kepler's bookstore. Good light meals too.
  
• Barefoot Cafe -- Steven's Creek in Santa Clara. Great coffee and nice place to sit. Their cappuccino is more like a macciatone. 
• Cafe Murano in San Francisco. Good coffee; nice neighborhood hangout.
  
• Ritual Coffee Roasters -- in the MIssion District
• Bittersweet Cafe -- they also serve chocolate/coffee drinks (try the original bicerin).
• Blue Bottle Cafe -- A SF landmark
• The Abbey Cafe in Santa Cruz -- wonderful place!