There are several Subway restaurants in Slovak capital Bratislava and new ones are popping up quite rapidly in recent months.
This restaurant can be visited at Párickova street, just next to main entrance to bus station Mlynské Nivy - very good spot for fast food restaurant.
Place is open daily from 7am till 10pm, on weekends they open later in the morning (9am, 10am).
Interesting detail is that they accept payment in bitcoins, litecoins and worldcoins.
Daily sub costs 1.9 euro.
sources: own visit and pictures