Moscow Metro is one of the largest subways in the world, and the second most efficient underground rail system in the world. The underground rail system takes into account wartime protection requirements and can be used for sheltering more than 4 million residents. Moscow Metro It has been recognized as the world's most beautiful subway, the subway station has different architectural shapes, gorgeous and elegant. Each station is designed by a famous domestic architect, each has its own unique style, the architectural pattern is also different, with colorful marble, granite, ceramics and colorful glass inlaid with various reliefs, carvings and mural decoration, lighting is very chic, like a magnificent palace, The "underground art hall" is known as the "underground art hall". Each metro station in Moscow has its own unique architectural style. Marbles and minerals from more than 20 different origins, including Ural Mountain, Altai, Central Asia, Caucasus and Ukraine, pave the station hall. The exquisite marble art statues, reliefs, elegant chandeliers, glass mosaics and mosaic mosaics on the top of the platform representing the mastery of the builders make the station a museum of art. In addition to the ceiling lamp, the subway car also designed a local light source for reading and reading newspapers, and installed an electronic display for the station name at the door of the car.