Moscow through 14 fascinating facts

This is a city of wealthy people; Moscow boasts a huge number of billionaires, sharing second place on the global list with Hong Kong.
Russians are deeply religious; just as they respect their own faith, they also honor others. The city has over 1,200 churches and chapels. Moscow is home to the tallest Orthodox church in the world and one of the largest mosques in Europe.
Moscow is also called the "port of the five seas," even though no sea is nearby. Through a system of canals and rivers (via the Volga and Don rivers), Moscow connects to five seas: the Baltic, White, Caspian, Black, and Azov seas.
Moscow is shaped in concentric circles, with the Kremlin as the central point.
The Moscow Metro is widely known as a masterpiece of art. If you find yourself in it, listen to the voice on the loudspeaker – if it is male, the train is moving clockwise (or from the outskirts to the city center), and if it is female, the situation is reversed (or from the city center to the outskirts).
The Kremlin clock, by which the whole of Russia sets its time, was constructed by the Serbian monk Lazar of Hilandar at the beginning of the 15th century.
Red Square did not get its name from the color red as is commonly thought; the name comes from the Old Slavic word "krasnaya," which means "beautiful square."
The Kremlin houses the world's largest cannon – the Tsar Cannon, as well as the largest bell – the Tsar Bell.
The GPS signal is jammed in some parts of Moscow: a spoofed signal, concentrated around the Kremlin, redirects everyone nearby to Vnukovo Airport, which is 32 km away.
Stray dogs in Moscow behave specifically to survive harsh conditions; they move in packs and have a unique behavioral model. The youngest in the pack usually fawns on passersby for food because they get it most easily, while the strongest is the pack leader. Laika, the first animal launched into orbit, was found as a stray dog on the streets of Moscow. Soviet scientists assumed she had already learned how to cope with extreme cold and hunger.
In the Moscow Metro, there was once a ticket machine that accepted 30 squats as a form of payment. It was installed ahead of the 2014 Sochi Olympics to motivate people to do more sports. Later, the machines were decommissioned.
There used to be a restaurant in Moscow called "Twin Stars Diner" that employed exclusively identical twins as its staff.
According to the latest data, 9% of Russia's population lives in Moscow.
Every year in Moscow, after the snow melts, the bodies of deceased homeless people are discovered; they are referred to as "snowdrops."