A couple who did not give their names walk in downtown Havana, February 2, 2015. (Photo by Alexandre Meneghini/Reuters)

A rescuer saves a resident from a flooded area in Wuhan, Hubei Province, China, July 2, 2016. (Photo by Reuters/China Daily)

Four-year-old Eve Hill enjoys the wet weather in York, northeast England on August 2, 2023. (Photo by James Glossop/The Times)

A pedestrian walks with an umbrella along a street during rainfall in Bengaluru on June 2, 2024. (Photo by Idrees Mohammed/AFP Photo)

Fishermen carry a tuna fish to the market in Mogadishu, Somalia, April 2, 2025. (Photo by Farah Abdi Warsameh/AP Photo)

English singer and songwriter Becky Hill arrives for the BRIT Awards at the O2 Arena in London, Britain, on March 2, 2024. (Photo by Maja Smiejkowska/Reuters)

Visitors walk down the Bramante Staircase at The Vatican Museums, during a press tour at the Vatican on May 2, 2025. (Photo by Dimitar Dilkoff/AFP Photo)

Salar de Uyuni (or Salar de Tunupa) is the world's largest salt flat at 10,582 square kilometers (4,086 sq mi). It is located in the Potosí and Oruro departments in southwest Bolivia, near the crest of the Andes, and is elevated 3,656 meters (11,995 ft) above mean sea level. The Salar was formed as a result of transformations between several prehistoric lakes. It is covered by a few meters of salt crust, which has an extraordinary flatness with the average altitude variations within one meter over the entire area of the Salar.