Metro station right outside the National Museum, the A (green) and C (red) lines* stop here. Like any medium-sized station, there are a handful of different exits with stairs down to the underground station and platform levels. Elevator also available at a specific exit.
Inside tickets can be purchased at multiple ticket machines, there are different European language options.
Overall the station was clean and fairly modern. I seem to recall a few convenience and small format retail shops inside for those looking to pick up a snack or newspaper.
Escalators take you down to the lower levels with the trains. Clear signs on each platform denote how many minutes until the next train arrives. The metro lines run 5am-12 midnight daily, though in the old town city center the metro stops are close enough that you can get around by walking if needed.
*3 total lines that compose the Prague metro system include A, C, above and B (blue). read more