Bold Elliptical Windows Bubble With Daylight at the Topazz Hotel in Vienna

<a href="http://bwm.at/projekte/hotel-topazz/">BWM Architekten and Partner</a> gave the narrow Topazz hotel in the heart of Vienna a series of bold elliptical windows that positively bubble with daylight. Teaming up with interior designer Michael Manzenreiter, the firm relied on sustainable building and decorative materials to optimize <a href="http://en.wikipedia.org/wiki/Efficient_energy_use">energy-effiency</a> and ensure that the new development has the smallest carbon footprint possible.

BWM Architekten designed this narrow boutique hotel in Vienna

The dark facade is punctuated with elliptical windows

All of the interior and exterior materials were sustainably-sourced - according to the designers - as part of an energy efficiency plan

The building has a curved form that makes it soft and inviting

There is one window per room and it is fitted with a padded seat to allow visitors to enjoy the view

The rooftop makes it convenient to get an even better view of the historical urban landscape