Rogner Bad Blumau Hotel, Styria, Austria
The Rogner Bad Blumau Hotel is a wellness spa offering tranquility in the Austrian forest. And because of its green housetops, it blends into the landscape. Such rooftops can alleviate water runoff and sewage overflows. Further, the vegetation on the roof acts as a natural water filter and serves to cool the surrounding air through evapotranspiration, which Discovery describes as “a natural process that cools the air as water evaporates from plant leaves.” Besides, green rooftops are simply more aesthetically pleasing — and a natural choice for a hotel dedicated to the rest and relaxation of weary travelers.