Hotel Caldor, a project by Sohne & Partner Architects near Vienna, Austria is a self check in suburban hotel. The ground floor contains the lobby, main access, and 24 hour check in machine. Emerging along the road the building's sleek geometry and duality of solid void atop a glass base creates a striking approach for guest and passers by with its buckling midsection. The upper level containing the rooms at 10 and 14 square meters is clad by a perforated metal screen of the hotels logo. This creative use of branding is both subtle and effective.