Angela Nikolau is a rooftopper from Moscow who likes to take photos and selfies standing or even lying on the edge of a skyscraper. Her photos are amazing but they send shivers down the spine.
 

Dr. Gustav Zander, a Swedish physician known for inventing mechanotherapy, which was defined in 1890 as “the employment of mechanical means for the cure of disease.” Zander exhibited his exercise machines at the 1876 Centennial Exhibition in Philadelphia where they won a gold medal. By 1906 Zander had established his first gyms with these machines in 146 countries.