The railway system in Vietnam is owned and operated by the
state-owned Vietnam Railways. The principal route
is the 1,726 kms single track running between Hanoi and Ho Chi Minh
City (former Saigon), also known as 'Reunification Line'. This was
built in the 1880s during the French colonial rule. There are also
standard gauge and mixed gauge in the North of the country, one of
which is running to Beijing in China.
Construction of the North-South line took over thirty years,
finally beginning operation in 1936, during which time other branch
lines were also completed.
Image courtesy of vr.com.vn.