1 room apartment of 49 m² in Vienna

Subway "Karlsplatz" station (U1, U4) only 450m far. There are many shops / restaurants / points of interest in the area, including the world famous "Opera House" which is located just a few steps outside the apartment! The apartment is very well connected to the rest of the city, as the subway station "Karlsplatz" leads to many other areas in the city.