DAS PARK HOTEL LINZ, AUSTRIA

CHECK OUT... The pipes! Staying in (unused) sewerage pipes might not be everyone’s idea of a romantic break but there’s no denying these intimate concrete bunkers are super cosy, quiet and convenient. Located on the banks of the Danube and with the historic and picturesque Linz – Austria’s third biggest city – close by, there’s plenty to do. At $150 per pipe per night, you’ll still be flush with cash for sightseeing, too.