Ireland I'm a seafood nut, and Ireland is one of the great seafood places of the world. Kinsale, in the south, has a beautiful harbor and a little bistro called Fishy Fishy Café. It's a little fish market--maybe 25 seats--with blue and red tiles. They fillet the fish right there. Oh, God, we ate so many things. Irish lobsters--they're as good as Maine lobsters. Fresh prawns that come right from the boats. Black sole, a beautiful fish. It's the restaurant I want to open someday. You know, you feel the love. Market Place, 011-353/21-477-4453, prawns $17.

RICK BAYLESS
Chef and owner of Topolobampo and Frontera Grill, both based in Chicago

SLIDESHOW A web-exclusive: delicious outtakes from our story • Launch the slideshow RELATED STORIES • Where Foodies Love to Eat,   Part 1 • Window or Aisle? Rachael Ray   answers our questions

Mexico City In Condesa, El Farolito has super-memorable steak tacos, grilled over charcoal. Incredibly delicious. But don't overlook their tacos al pastor, with pork and red chili sauce (Altata 19, Colonia Condesa, 011-52/55-5273-7297, taco al pastor $1). Churrería el Moro has the best churros in the world (Eje Central Lázaro Cardenas No. 42, Colonia Centro, 011-52/55-5518-4580, four churros and hot chocolate $3.50).

GABRIEL KREUTHER
Chef at The Modern, at the Museum of Modern Art in New York City; he was raised in Alsace, France

Strasbourg Chez Yvonne has the best presskopf ($11), a pâté made from a pig's head (10 rue du Sanglier, 011-33/3-88-32-84-15). And Munsterstuewel has marvelous choucroute with all the little things ($30)--pork shank, four types of sausage, bacon, sauerkraut, and house quenelles (8 place du Marché-aux-Cochons-de-Lait, 011-33/3-88-32-17-63).

ROBERT STEINBERG
Cofounder of the Scharffen Berger chocolate company

Paris Du Pain et Des Idées boulangerie specializes in rustic bread with a perfectly crunchy crust. In addition to the bread, there are a few pastries, such as seasonal fruit tarts and pain au chocolat (34 rue Yves Toudic, 011-33/1-42-40-44-52, pain au chocolat $1.30). Pizza Grill Istanbul is suggestive of life at the eastern edge of Europe. Choices include tomato, lettuce, and feta cheese salads; tender lamb shish kebabs; and a salted yogurt drink called ayran that's quite refreshing (66 rue du Faubourg Saint-Denis, 011-33/1-48-00-98-10, lamb shish kebabs $11). Le Réveil du 10ème is something of a quartier secret (35 rue de Château d'Eau, 011-33/1-42-41-77-59, veal dinner $14).

SAM HAYWARD
Co-owner and chef of Fore Street in Portland, Maine

Venice Everywhere my wife and I went in Venice we asked our servers where they eat. They all had the same answer: Al Nuovo Galeon, in the Castello neighborhood. There's a piazza outside, and Mom's running back and forth with mouth-fuls of scampi to watch the kids. They'll bring you a huge platter of seafood with spider crab, shrimp, octopus, squid, sea bass, and a couple other things. It's all glistening and served with mild olive oil. They'll give you a hard time if you order anything complex like risotto. 1308 Via Garibaldi, 011-39/041-520-4656, seafood platter $54.

ROB KAUFELT
Owner of Murray's Cheese Shop in New York City

Barcelona I recently went to a little bar in Boqueria called Bar Pinocho and ate chungete, needle-thin deep-fried fish; prawns, cooked simply with olive oil; and clams with an egg broken onto them. But the best was the baby squid cooked with white beans and squid ink and finished in balsamic and grain salt. La Rambla 91, 011-34/93-317-17-31, baby squid $12.

MIREILLE GUILIANO
Author of the best-selling book French Women Don't Get Fat and president and CEO of the American arm of Veuve Clicquot