Where electricians, lamp makers and bakers once plied a trade, the Grätzlhotel has injected new life into Leopoldstadt with ultracool interiors courtesy of some of Vienna's top architects. Just around the corner from Karmelitermarkt, the suites are minimalist and streamlined, with vintage lights and homey touches – kitchens with Nespresso makers, retro radios and Viennese Saint Charles Apotheke toiletries.
Check-in is relaxed (you'll be given a code to enter), and free bikes are available for zipping around the sights or cruising to the nearby Danube. There are walking maps in your room to help navigate the surrounding area.