Cheng Liping, whose husband Ju was onboard Malaysia Airlines Flight MH370 which disappeared on March 8, 2014, shows a picture of she and her husband together and an old card with a message given by her husband, at a park near her house where she and her husband used to visit during an interview with Reuters in Beijing July 24, 2014. Cheng said her life has been totally changed since the incident. Their two little sons, who don't know about this incident, keep asking her when their dad is coming back. Six months after Malaysia Airlines Flight MH370, with 239 mostly Chinese people on board, disappeared about an hour into a routine journey from Kuala Lumpur to Beijing March 8, loved ones of missing passengers derive what comfort they can from what's left behind after the world's greatest aviation mystery. More than two dozen countries have been involved in the air, sea and underwater search for the Boeing 777 but months of sorties failed to turn up any trace – even after narrowing the search area to the southern Indian Ocean – long after batteries on the black box voice and data recorders had gone flat. (Photo by Kim Kyung-Hoon/Reuters)

In this March, 2015 photo, a person sits at an upright piano that had been hauled up to Topanga Lookout in the Santa Monica Mountains in Calabasas, Calif. For a couple of days last week, a Southern California hilltop was alive with the sound of mystery. Hikers venturing to Topanga Lookout found a battered upright piano sitting on a graffiti-scrawled concrete slab with a panoramic view over the mountains between Calabasas and the Pacific Ocean. Turns out, the piano was used for a music video by Seattle-based artist Rachel Wong. The cinematographer, Michael Flotron, says he and four others used a dolly and rope to haul the 350-pound instrument a mile up the trail on Tuesday. After the shoot, it was too dark to get the piano back down. Flotron says people seem happy to leave it there. But if necessary, he'll haul the piano back down. (Photo by Michael Flotron/AP Photo)

Protestors break through the barriers of the DNC in Park #578 during the March on the DNC 2024 in Chicago, IL on Monday, August 19, 2024. (Photo by Laura Thompson/Rex Features/Shutterstock)

A boy dives into the water during training in Kyiv's Liko Diving School, July 3, 2024. According to Ukraine's first lady, more than 2 million children have fled the country. The departures have impacted various sports. (Photo by Alex Babenko/AP Photo)

A man smokes a marijuana cigarette to celebrate 420, in Times Square amid the coronavirus disease (COVID-19) pandemic in New York City, New York, U.S., April 20, 2021. (Photo by Carlo Allegri/Reuters)

Students from the Liceo Parini school celebrate the end of term in Milan, Italy on June 6, 2024. (Photo by Marco Ottico/LaPresse/Rex Features/Shutterstock)

Followers of the Stowdart Sect of the Zion Church of God, sing and dance during a service in the historic neighborhood of Mbare in Harare on August 20, 2023. Zimbabweans will head to the polls on August 23, 2023 to vote in general and presidential elections. (Photo by John Wessels/AFP Photo)

Spot-billed pelican interact on the banks of an artificial lake in Colombo on September 28, 2021. (Photo by Ishara S. Kodikara/AFP Photo)