Quick answer
Bus and tram stops are остано́вка; metro and train stations are ста́нция and вокза́л. You travel на метро́, and метро́ never changes its ending.
Vehicles
Places
Tickets and rules
The announcements
Every Moscow metro train says the same two sentences. Learn them once and you will always know where you are.
Asking your way through
Typical mistakes
на метре́
на метро́
метро́ is borrowed and never declines. Nor do такси́ or кафе́.
Я е́ду на остано́вке.
Я е́ду до остано́вки.
до + genitive for how far you ride.
Check yourself
Which is correct?