Blankets cover the bodies of a woman (right) and a man (left background) hit by a northbound Penn Central train (background) as they waited with a crowd at Pennsylvania Railroad station in Elizabeth, N.J. on June 8, 1968 to view the southbound train carrying the body of Sen. Robert F. Kennedy to Washington. The woman was identified as Mrs. Antoinette Severini, 54, and the man, John Curia (age unavailable), both of Elizabeth. (Photo by AP Photo)

A Muslim worshipper attends a mass prayer against COVID-19, the new coronavirus, in Dakar on March 4, 2020, after two cases were confirmed in Senegal in the previous days. Across the world, 3,155 people have died from the virus. More than 92,723 have been infected in 78 countries and territories, according to AFP's latest toll based on official sources at 1700 GMT on March 3, 2020. (Photo by John Wessels/AFP Photo)

A mascot of the Philippine National Police (PNP), named after their Chief Director General Ronald Dela Rosa, marches with members of the K9 units and the Special Action Force before the mass blessing for rescue dogs during the celebration of the feast day of St. Francis of Assisi, patron Saint of Animals, at the St. John Paul II parish church in Eastwood, Quezon city, metro Manila, Philippines October 2, 2016. (Photo by Romeo Ranoco/Reuters)

A folk artist performs a stunning fire-pot performance on October 18, 2024 in Guangzhou,Guangdong Province of China.Huohu (fire pot) is a traditional folk performance art.Performers put well-burned charcoal into iron meshes on both sides and shake the meshes up and down so that the charcoal will flare up and blazing sparks will burst out of the meshes and light up the sky just like fireworks. (Photo by John Ricky/Anadolu via Getty Images)

A person waves a drum while other people wearing traditional Russian village-style clothes celebrate the summer solstice near a bonfire in the village of Okunevo, about 200 kilometers (about 125 miles) northeast of the Siberian city of Omsk, Russia, on Wednesday, June 21, 2023. The festivities of Ivan Kupala, or John the Baptist, are similar to Mardi Gras and reflect pre-Christian Slavic traditions and practices. (Photo by Evgeniy Sofiychuk/AP Photo)

Poland's Daria Pikulik, Poland's Wiktoria Pikulik and Britain's Elinor Barker (R) crash as they compete in the Women's Madison race during the fifth day of the UEC European Track Cycling Championships at the Omnisport indoor arena in Apeldoorn, on January 14, 2024. bark (Photo by John Thys/AFP Photo)

Ngorongoro Crater (Tanzania). At 610m deep and 260 sq km, this is the largest unflooded caldera in the world. A blue-green vision from above it's a haven for engangered wildlife and Maasai livestock. The crater was formed three million years ago when a giant volcano, which could have been as high as Kilimanjaro, exploded and collapsed. The caldera formed the concentric fractures in the crust cracked down to a magma reservoir deep underground. (Photo by John Bryant/Getty Images)

An artwork entitled “Are you still mad at me?” by John Isaacs is displayed at the Death: A Self-portrait exhibition at the Wellcome Collection on November 14, 2012 in London, England. The exhibition showcases 300 works from a unique collection by Richard Harris, a former antique print dealer from Chicago, devoted to the iconography of death. The display highlights art works, historical artifacts, anatomical illustrations and ephemera from around the world and opens on November 15, 2012 until February 24, 2013. (Photo by Peter Macdiarmid)