On a quiet side street in the 4th district near the Ring, Hotel Kaiserhof Wien places you about seven minutes from the State Opera and close to Karlsplatz (U1/U2/U4). Rooms include air-conditioning, flat-screen satellite TVs, multimedia docking, minibars, tea/coffee makers, and bathrooms with hairdryers and make-up mirrors; allergy-friendly options are available on request. A small spa has a sauna, steam bath, and fitness room, plus an internet corner. Mornings begin with a generous Viennese breakfast buffet; drinks and snacks are served at the bar and in the winter garden. Belvedere and St. Stephen’s are roughly a 15–20 minute walk; Schönbrunn is easily reached by U-Bahn. Free Wi-Fi is included.