The first, the longest, the tallest
The first Metro line went into service on May 15, 1935, between Sokolniki and Gorki Park. The 11.6-kilometre line served 13 stations. The longest line in Moscow today is the Кaluzhsko-Rizhskay line, from Medvedkovo to Bitsevsky Park. It takes 58 minutes and 30 seconds to travel the 38 km. The Moscow Metro is the busiest underground system in the world. Each day, it carries 9 million passengers, twice as many as either the London Underground or the Paris Metro.
The first railroad station in Moscow was the Nikolayevskiy, later renamed the Leningradskiy, built in 1849. The first rail line between Moscow and St Petersburg was inaugurated in 1851.