Hanoi, April 27 -- Hanoi (VNA) - In the first four months of this year, Hanoi welcomed an estimated 12.14 million visitors, up 20.9% year-on-year, generating total revenue of more than 50.8 trillion VND (1.93 billion USD), an increase of 22.8%, the municipal Department of Tourism reported. In April alone, the capital recorded about 3.09 million tourist arrivals, up 13.3% year-on-year, including around 780,000 international visitors, a rise of 6.9%. Tourism revenue for the month was estimated at 12.65 trillion VND, up 11.2% from a year earlier. This is seen as a positive signal, reflecting a clear recovery and growth momentum in the capital's tourism sector, particularly as Hanoi is developing breakthrough solutions aimed at attracting mor...