Let's take a look at the top 10 Change the World companies.
Driven simply by passion, hobbyists can spend hours and hours building something that could leave us speechless. Here are five enthusiasts who have created things that are both technically challenging and physically demanding.
A pair of goats test their strength in Yanggu county, Shandong province on Sept 12, 2017.
Residents in remote villages relocate to new settlements with modern housing and jobs. Hou Liqiang and Daqiong report from Chushul.
Farmers begin to harvest wheat in Janbulak scenic spot in Qitai county of Changji, Northwest China's Xinjiang Uygur autonomous region.
Apple has announced its launch date of iphone 8 on Sept 12, while Xiaomi plans to unveil its bezel-less Mi Mix 2 one day earlier. Smartphone vendors are going all out to attract consumers.
A seasonal high tide of the Qianjiang River in Hangzhou, East China's Zhejiang province, Sept 9, 2017, creates excitement. A high tide usually comes around the 19th day of the seventh lunar month.
Powerful Hurricane Irma roared into Florida with 130 mph winds and knocked out power to more than 3 million homes and businesses in Florida on Sunday.
Performing the traditional Chinese martial arts tai chi and kung fu, a group of Chinese kung fu champions wowed audiences on Times Square on Sunday.
Britain's Prince George accompanied by Britain's Prince William, Duke of Cambridge arrives for his first day of school at Thomas's school in Battersea on Sept 7, 2017.
The Chongqing version of Midnight Diner happens in a 24-hour restaurant located at a business center of the Southwestern city's Yuzhong district. In the past 11 years, the family-run workshop has earned its boss four houses in Chongqing.