Lovot companion robots by Groove X wander in front their booth at CES Unveiled during the 2020 CES in Las Vegas, Nevada, January 5, 2020. (Photo by Steve Marcus/Reuters)

A couple walks across the Francis Scott Key Bridge as the setting sun lights up the clouds in Washington, Friday, October 30, 2020. (Photo by J. David Ake/AP Photo)

Cute sеxy caucasian brunette young woman dressed as Mrs. Santa Claus, smiling with joy, biting a candy cane with eyes closed, Christmas or New Years Eve 2022 concept. (Photo by Cryptographer/Rex Features/Shutterstock)

A gaucho is unseated by an untamed horse during the Creole week celebrations in Montevideo, Uruguay on March 26, 2018. (Photo by Andres Stapff/Reuters)

Tattoo enthusiasts pose for a photo during the 14th Expotattoo Colombia Fair in Medellin, Colombia, on May 26, 2024. (Photo by Jaime Saldarriaga/AFP Photo)

Porcelain Black performs during the ' I Am Still Music' Tour at the Wells Fargo Center on March 26, 2011 in Philadelphia, Pennsylvania

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.