Hanoi, June 20 -- As Vietnam's political, cultural and tourism hub, Hanoi welcomes tens of millions of domestic and international visitors each year and has gained global recognition for its rich heritage, distinctive cuisine and strong cultural identity. However, tourism experts say the city's night-time economy and visitor experiences have yet to fully match its potential. Beyond Hoan Kiem Lake (Sword Lake), the Old Quarter and several weekend pedestrian streets, evening entertainment and cultural offerings remain limited. Many visitors end their exploration of Hanoi early, despite the fact that night-time activities are a major driver of tourism spending in many global destinations. Existing products have already demonstrated Hanoi's p...