Why Moscow Metro is famous?

Related questions

1. How old is Moscow metro?
2. How do you pronounce Moscow?
3. Which is the busiest tube line?
4. What is the pink line on London Underground?
5. Who made Moscow the capital?
6. How much is an Oyster card?
7. What time does Moscow metro close?
8. Is an Oyster card cheaper?
9. What's the oldest Tube line?
10. Which is the deepest tube line?

Tags

1. #world
2. #lines
3. #efficient
4. #marble
5. #ample
6. #system
7. #chandeliers
8. #decorated
9. #subway
10. #crisscross
11. #cleanest
12. #famous
13. #stations
14. #columns
15. #among
16. #ornate
17. #frescoes
18. #elegant
19. #opened
20. #underground
21. #moscow