It’s really the windows that liven up the exterior of this project, the Hotel Topazz, designed by BWM Architekten. The massing of the project is quite restrained and conforms to site lines generated by its neighbors. But the project proudly contrasts its neighbors in the fenestration department. I’m not sure when it was decided that oval windows were the fenestration pattern of the future, but most of the time when I see a project with oval windows (except for stained glass ones) it’s a project with a very forward-looking attitude. And as long as oval windows are uncommon, they will likely remain a shorthand way for architects to say “Hey, this building is from the future.” In Vienna, the future opened to guests and visitors just over a month ago.