Situated roughly 3km north of the Metropol, Belarus Station is the Moscow terminal for trains to/from Belarus (Minsk and Brest), Kaliningrad, Smolensk and international destinations including Vilnius, Warsaw, and Berlin.
By taxi
The journey by taxi to the Metropol will take upwards of 20 minutes, and should not cost more than $20. If you prefer, you can pre-order a transfer with a driver to meet your train here.
By metro
It is a direct journey from Belorusskaya Metro Station (connected to the mainline station concourse) on the dark-green line three stops south to Teatralnaya, which is under five minutes' walk from the Metropol Hotel.