Carnival of Basel 2018 held in Switzerland

A reveler participates in the Carnival of Basel 2018 in Basel, Switzerland, on Feb. 19, 2018. The Carnival of Basel, the biggest carnival in Switzerland inscribed on UNESCO's Representative List of the Intangible Cultural Heritage of Humanity in December 2017, started on Monday and will last 72 hours. (Xinhua/Xu Jinquan)