The Vietnam Slide Project was created by photo editor Kendra Rennick, who began collecting photo slides after a close friend lost her father, a Vietnam veteran. Her friend found a box of slides that her father had taken while in Vietnam and from there Rennick has continued to collect photographs that Vietnam veterans took during their tours of duty. Here: A photo taken from the collection of D.Thornton, who served in the First Air Cavalry division of the United States Army. (Photo by D.Thornton/The Vietnam Slide Project)

In this Wednesday, June 8, 2016 photo, Joe Giles, an actor portraying a zombie in “The Walking Dead”, poses with social media reporter Danielle Datu during a walker boot camp at Universal Studios Hollywood in Los Angeles. (Photo by Jae C. Hong/AP Photo)

In this July 24, 2016 photo, a pilgrim takes a bath in a sacred mud pool during the annual Voodoo celebration in Plaine-du-Nord, Haiti, Saturday, July 23, 2016. Pilgrims come to bathe in the mud and make offerings expecting a miracle. (Photo by Dieu Nalio Chery/AP Photo)

A photo taken on July 22, 2017 shows beach- goers dancing at the West Sea Barrage beach outside the coastal city of Nampo, southwest of Pyongyang. The West Sea Barrage beach features as a stopping point for foreign tourists, and is a destination for North Korean work groups from the neighbouring area. The beach lies at the end of an eight- kilometre- long barrage that separates the sea from the Taedong River, which runs through Pyongyang. (Photo by Ed Jones/AFP Photo)

In this Wednesday, August 2, 2017 photo, Borre, an 8-year-old cat sits in a basket next to the canal on the Catboat shelter in Amsterdam, Netherlands. In the heart of the Dutch capital, on a canal near one of the busiest shopping streets, a floating animal sanctuary called The Catboat provides refuge for about 50 stray and abandoned felines. (Photo by Muhammed Muheisen/AP Photo)

Aleksandra Miroslaw, of Poland, competes during the speed portion of the women's sport climbing final at the 2020 Summer Olympics, Friday, August 6, 2021, in Tokyo, Japan. (Photo by Tsuyoshi Ueda/Pool Photo via AP Photo)

In this Thursday, May 31, 2018 photo, a temporary worker using a lantern collects white asparagus from a field in Caparroso, around 85 km (52 miles) from Pamplona, northern Spain. Dubbed the “white gold” of these northern Spanish farms because of their color and the high price they fetch in markets and restaurants around the world, the stringy delicacy is planted every fall and picked each year between April and June, at the height of the spring. (Photo by Alvaro Barrientos/AP Photo)

This handout photo taken on March 8, 2021 and released on March 9 by the Myitkyina News Journal shows a nun pleading with police not to harm protesters in Myitkyina in Myanmar's Kachin state, amid a crackdown on demonstrations against the military coup. (Photo by Myitkyina News Journal/Handout via AFP Photo)