Sri Lanka is a diverse and beautiful country with many incredible tourism destinations. Some of the most popular tourist destinations in Sri Lanka include:

1. Sigiriya - An ancient rock fortress with stunning views and well-preserved frescoes, located in the central Matale District.

2. Kandy - A charming city known for its sacred Buddhist sites, including the Temple of the Tooth Relic and the Royal Botanic Gardens.

3. Galle - A historic town on the southwest coast with a well-preserved Dutch fort, picturesque streets, and beautiful beaches.

4. Nuwara Eliya - A hill station in the central highlands known for its cool climate, tea plantations, and scenic landscapes.

5. Ella - A small town in the central highlands surrounded by lush greenery, waterfalls, and hiking trails, including the famous Ella Rock and Nine Arch Bridge.

6. Mirissa - A coastal town known for its beautiful beaches, whale watching tours, and laid-back vibe.

7. Yala National Park - Sri Lanka's most famous national park, home to a wide variety of wildlife, including leopards, elephants, and birds.

8. Anuradhapura - An ancient city in the north central province with well-preserved ruins of a once powerful kingdom, including dagobas, monasteries, and palaces.

9. Trincomalee - A port city on the east coast with beautiful beaches, coral reefs, and the ancient Koneswaram Temple.

10. Polonnaruwa - Another ancient city in the north central province, known for its well-preserved ruins, including the Royal Palace, council chamber, and Gal Vihara rock temple.

These are just a few of the many amazing destinations to explore in Sri Lanka. From pristine beaches to ancient ruins, lush tea plantations to wildlife-rich national parks, there is something for every type of traveler to enjoy in this diverse and beautiful country.