Yes, those are people: A still image from a drone video filmed inside the world's largest cave shows cavers standing beneath one of two large skylights in Vietnam's Hang Son Doong. Ryan Deboodt /Vimeo hide caption

itoggle caption Ryan Deboodt /Vimeo

A U.S. Air Force C-123 sprays herbicides on dense jungle beside a South Vietnamese highway on May 18, 1966. This aircraft is the last in a formation of three. Spray from the other two planes can be seen ahead. U.S. Air Force via AP hide caption

itoggle caption U.S. Air Force via AP

Nearly everyone fishes for a living on Laos' Don Sadam Island, near the site of the controversial Don Sahang dam. Locals and environmentalists alike are worried about the dam's effects on fish migration. Michael Sullivan/NPR hide caption

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Policemen ask people to leave a street near to the Chinese embassy in Hanoi on Sunday. A call for further anti-China protests appeared to have fizzled in the capital, with authorities deploying heavy security around the Chinese embassy and other suspected protest sites. Hoang Dinh Nam /AFP/Getty Images hide caption

itoggle caption Hoang Dinh Nam /AFP/Getty Images

Chinese nationals stand by their belongings after crossing to Cambodia from Vietnam at the Bavet international checkpoint in Svay Rieng province, on Thursday. Hundreds of Chinese are fleeing the country as unrest escalates. Samrang Pring/Reuters/Landov hide caption

itoggle caption Samrang Pring/Reuters/Landov

A Taiwanese bicycle factory in Ho Chi Minh City burns after mobs angered over Chinese moves in the South China Sea mistakenly targeted the facility, thinking it was Chinese owned. Jeff Nesmith/AP hide caption

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Vincent Mourou, co-founder of Vietnam's first artisan chocolate maker Marou, inspects cacao beans at a farmer's garden in Go Cong Tay district. Hoang Dinh Nam/AFP/Getty Images hide caption

itoggle caption Hoang Dinh Nam/AFP/Getty Images

Adm. Mohd Amdan Kurish of the Malaysian Maritime Enforcement Agency Admiral, left, checks radar during a search for the missing Malaysia Airlines plane off Tok Bali Beach in Kelantan, Malaysia, on Sunday. Malaysian Maritime Enforcement Agency/AP hide caption

itoggle caption Malaysian Maritime Enforcement Agency/AP