Index and credits:
1. Italian former legend of free diving swims up during an apnea course at deepest pool in the world for free and scuba diving. (Olivier Morin / Getty Images)
2. A shovel is placed over coal briquettes during a protest in front of the chancellery in Berlin. (Hannibal Hanschke / Reuters)
3. Coast Guard members conduct flare training on Plum Island, Massachussetts. (U.S. Coast Guard / Petty Officer 3rd Class MyeongHi Clegg/handout / Reuters)
4. A Buddha sculpture is seen through red strings, which is part of an artwork on display at a shopping mall in Beijing.
5. Indian labourers work at a cotton processing and packaging industry in Kadi. (Sam Panthaky / Getty Images)