Street Lofts
In Vienna you have Street Lofts. The Urbanauts project turned abandoned stores in design hotel rooms for adventurers. You can sleep in a spacious and comfortable Street Loft where the history of the former shop is still visible. Explore Vienna from your loft. Check in via a key-safe and for breakfast, spa or dinner they have made arrangements with the neighbors of the loft (nearest breakfast cafe etc …) The brainchild of a group of local architects.
Website: Urbanauts