Trains from Kiev and several eastern and central european destinations including Belgrade, Zagreb, Bucharest, Budapest, Prague, Vienna, and Venice arrive at Kiev Station, which is roughly 4km west of the Metropol Hotel.
By taxi
The drive to the Metropol should take around 20 minutes, but can take much longer at peak times. Taxis will cost $15-20, and you can also book a transfer with a driver to meet your train here.
By metro
Take the dark-blue line from Kievskaya Metro Station and travel west three stops to Ploshchad Revolyutsii, which is about 100m from the Metropol Hotel.