Only best placed

[List]: 1. Tram Ton Pass 2. Phong Nha-Ke Bang National Park 3. Halong Bay – Bay of Descending Dragons 4. The Nguyen Dynasty Tombs 5. Ghenh Da Dia 6. Son Tra Peninsula 7. Mekong Delta 8. Phu Quoc Island 9. Hue Imperial City 10. The One Pillar Pagoda [Source]: globalgrasshopper.com