@CNN: A set of colonial-era train tracks running through Hanoi’s Old Quarter has become a must-visit spot for tourists https://t.co/wpJQG5OO4Y via @CNNTravel https://t.co/werKC9clWD

@CNN: A set of colonial-era train tracks running through Hanoi’s Old Quarter has become a must-visit spot for tourists https://t.co/wpJQG5OO4Y via @CNNTravel https://t.co/werKC9clWD