A person participates in the annual “Battle of the Oranges” in the northern city of Ivrea, Italy on February 19, 2023. (Photo by Massimo Pinca/Reuters)
Dancers from Kyiv and Dnipro preparing themselves in the wings for a performance at the Kyiv National Opera House on June 24, 2022. (Photo by Julian Simmonds/The Guardian)
Located in East Java, Indonesia, Kawah Ijen is a volcano is home to the largest acidic crater lake in the world. What turns the waters of the lake in the 1 km caldera its beautiful turquoise color are the highly sulfuric gases emitted from the volcano underneath.