Adorable Panoramic Photos of Most Oldest Subway in The World

At the end of the 19th century railway construction and industrial development led to sharp increase in Moscow's size and a rise in its population. By then Moscow covered 710 sq km and was home to 978,500 people. Some 16,000 horse-drawn cars provided the main form of transport.
The emergence of the horse-drawn tram in 1872 provided the impetus for the development of public transport though even the introduction of electric trams in Moscow in 1902 could not solve the problem of providing mass public transport. The city's rapid development required radical reorganisation of urban and suburban public transport.