The Moscow Metro is a rapid transit system serving Moscow, Russia and the neighbouring Moscow Oblast cities.
The Smolensky Metro Bridge spans the Moskva River, connecting central districts of Moscow.
The Preobrazhensky Metro Bridge spans the Yauza River in Moscow.
The Mitino Metrobridge spans the Moskva River in Moscow, Russia.
Minsk Metro is the main public transportation system in Minsk.
The Kazan Metro is a modern, efficient underground transport network.
Samara Metro consists of one line and ten stations.
The Helsinki Metro is the major rapid transit system serving the cities of Helsinki and Espoo.
The Warsaw Metro is the only underground railway system in Poland.
The Stockholm Metro is known for its art installations, earning it the nickname 'World's Longest Art Gallery'.