1. El Celler de Can Roca - Located in Girona, Spain, El Celler de Can Roca is known for its innovative and creative cuisine. It has been ranked as one of the best restaurants in the world multiple times.
2. Osteria Francescana - Situated in Modena, Italy, Osteria Francescana is renowned for its modern Italian cuisine. It has earned three Michelin stars and topped the list of The World's 50 Best Restaurants in 2016 and 2018.
3. Noma - Based in Copenhagen, Denmark, Noma is recognized for its groundbreaking Nordic cuisine. It has been named the best restaurant in the world four times and is known for its focus on local and seasonal ingredients.
4. Mirazur - Located in Menton, France, Mirazur offers a unique dining experience with its inventive and nature-inspired dishes. It holds three Michelin stars and was crowned the best restaurant in the world in 2019.
5. Gaggan - Situated in Bangkok, Thailand, Gaggan is celebrated for its progressive Indian cuisine. It has received two Michelin stars and is known for its avant-garde approach to traditional Indian flavors.
6. Central - Based in Lima, Peru, Central showcases the diversity of Peruvian ingredients through its innovative tasting menus. It has been named the best restaurant in Latin America multiple times and is a must-visit for food enthusiasts.
7. Eleven Madison Park - Located in New York City, USA, Eleven Madison Park offers a refined and elegant dining experience. With three Michelin stars, it is known for its seasonal menus and impeccable service.
8. Maido - Situated in Lima, Peru, Maido combines Japanese and Peruvian flavors to create a unique Nikkei cuisine. It has been ranked as one of the best restaurants in Latin America and is recognized for its sushi and ceviche.
9. Arpège - Based in Paris, France, Arpège is a renowned restaurant that focuses on vegetarian and sustainable cuisine. It holds three Michelin stars and is known for its exceptional use of fresh and organic produce.
10. Alinea - Located in Chicago, USA, Alinea offers a multisensory dining experience with its avant-garde cuisine. It has been awarded three Michelin stars and is known for its innovative presentation and flavor combinations.
11. Azurmendi - Situated in Larrabetzu, Spain, Azurmendi is known for its sustainable and environmentally friendly approach to gastronomy. It has three Michelin stars and offers a unique culinary journey with its tasting menus.
12. Steirereck - Based in Vienna, Austria, Steirereck showcases the best of Austrian cuisine with a modern twist. It has been ranked as one of the best restaurants in Europe and is known for its emphasis on local and seasonal ingredients.
13. Pujol - Located in Mexico City, Mexico, Pujol celebrates traditional Mexican flavors with a contemporary touch. It has been named the best restaurant in North America and offers a memorable dining experience with its tasting menus.
14. Quintonil - Situated in Mexico City, Mexico, Quintonil is known for its modern Mexican cuisine that highlights local ingredients. It has been ranked as one of the best restaurants in Latin America and is a must-visit for food lovers.
15. Geranium - Based in Copenhagen, Denmark, Geranium offers a unique dining experience with its innovative and visually stunning dishes. It holds three Michelin stars and has been recognized as one of the best restaurants in the world.
16. Disfrutar - Located in Barcelona, Spain, Disfrutar offers a playful and creative approach to Mediterranean cuisine. It has been awarded two Michelin stars and is known for its visually stunning and delicious tasting menus.
17. Attica - Situated in Melbourne, Australia, Attica showcases the diversity of Australian ingredients through its modern and inventive dishes. It has been named the best restaurant in Australasia and is a must-visit for food enthusiasts.
18. Alain Ducasse au Plaza Athénée - Based in Paris, France, Alain Ducasse au Plaza Athénée is known for its elegant and refined French cuisine. It holds three Michelin stars and offers a luxurious dining experience in the heart of Paris.
19. Le Bernardin - Located in New York City, USA, Le Bernardin is celebrated for its exquisite seafood dishes. With three Michelin stars, it is known for its impeccable technique and the freshness of its ingredients.
20. Azurmendi - Situated in Larrabetzu, Spain, Azurmendi is known for its sustainable and environmentally friendly approach to gastronomy. It has three Michelin stars and offers a unique culinary journey with its tasting menus.

These are just a few examples of the top 20 best restaurants in the world. Each of these establishments offers a unique and exceptional dining experience, showcasing the creativity and talent of their chefs. For more information and detailed rankings, you can refer to sources like The World's 50 Best Restaurants list and Michelin Guide.