DNA double helix in human letters
World record set in Bulgaria
The largest human DNA helix for Guinness World Record get 4,000 participants and is organized by Medical University (Bulgaria), on the South beach in the Black sea town of Varna, Saturday, April, 23, 2016. Thousands of people are arranged to form the shape of the double-stranded structure for The largest human DNA helix. The current Guinness World Record title belongs to Turkey, as the DNA helix was formed by 3,034 people in Ankara in 2013. (Photo by: Petar Petrov /Impact Press Group)