The eruption of Cordon Caulle began on June 4, 2011, located in the Region of Los Rios in Chile. For about 12 months, people and animals became accustomed to living with the daily fall of ash, which also caused problems in the air traffic in South America. The explosions and lightning during first days of the eruption could be seen from hundreds of miles around. This photograph was taken on the second night of eruption from the town of Lago Ranco. (Photo and caption by Francisco Negroni/National Geographic Traveler Photo Contest)

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Swiss police officers stand beside of mock gates of the NEAT Gotthard Base Tunnel inside the event hall for the upcoming opening ceremony near the town of Erstfeld, Switzerland May 31, 2016. The celebrations of the opening of the Gotthard Base Tunnel will start on June 1, 2016. With a length of 57 km (35 miles) crossing the Alps, the Gotthard Base tunnel is the world's longest train tunnel. (Photo by Arnd Wiegmann/Reuters)

A Syrian boy looks through a gate as others wait to cross into Syria at Oncupinar border crossing in the southeastern city of Kilis, Turkey February 11, 2016.. (Photo by Osman Orsal/Reuters)

The shadow of a cross is pictured as Catholic faithful arrive to attend a reenactment of the “Via Crucis” (way of the Cross) during Holy Week in Abobote, an area of Abidjan, Ivory Coast, on April 18, 2025. (Photo by Luc Gnago/Reuters)

The night view of the National Assembly Building and Yeouido in Yeongdeungpo District, Seoul taken on the December 27, 2024. The lights shine in a cross shape thanks to the cross filter used. (Photo by Koh Woon-ho)

Actors and figurants participate in the staging of the Live Stations of the Cross and Procession of the Dead Lord during the celebration of the easter in the Medieval Village of Ourem, Portugal, 15 April 2022. The Live Stations of the Cross is dramatized by about 100 actors and extras from the local community, besides the requalification of the Castle and Palace of the Counts of Ourem that will provide a new setting, a new protagonist will embody Jesus Christ along the 14 stations of the Stations of the Cross. (Photo by Paulo Cunha/EPA/EFE)

In this September 17, 2010 file photo a little brown bat is photographed in La Crosse Wis. Researchers for the first time found that little brown bats appear to be showing resistance to white-nose syndrome, which has killed millions of bats across North America. (Photo by Peter Thomson/La Crosse Tribune via AP Photo)

An actor carries a cross as he plays the role of Jesus Christ in a re-enactment of the Via Crucis (Way of the Cross) during a Holy Week procession, in preparation for Good Friday celebrations, in Luque, Paraguay, on March 27, 2013. Holy Week is celebrated in many Christian traditions during the week before Easter. (Photo by Jorge Adorno/Reuters)