Listen to the sounds of Hanoi (VOVWORLD) - If you mention Hanoi, most people picture an ancient city full of elegance, serenity, and charm. But there's another side to Hanoi, a busy, ever-awake metropolis full of energy...
Clean energy buses, an inevitable trend for urban areas (VOVWORLD) - Hanoi is gradually replacing its diesel buses with electric or green energy vehicles, in a bid to improve public transportation and protect the environment
