Gunfire erupted at a Denver pot celebration Saturday, injuring two people and scattering a crowd of thousands who had gathered for the first 4/20 counterculture holiday since the state legalized marijuana... Photo: A woman smokes a large marijuana joint at the Vancouver Art Gallery during the annual 4/20 day, which promotes the use of marijuana, in Vancouver, British Columbia April 20, 2013. (Photo by Ben Nelms/Reuters)

With the help of some fake teeth and multiple exposures, New York AP photographer Eddie Adams' daughter Susan is transformed into a little ghoul on Halloween night, October 31, 1966. (Photo by Eddie Adams/AP Photo)

This picture taken on January 6, 2018 shows macaque monkeys looking at a man's camera during snowfall at Wulongkou Nature Reserve in Jiyuan in China's central Henan province. (Photo by AFP Photo/China Stringer Network)

Dancers perform during a general rehearsal of “Kreatur” (Creature) by German choreographer Sasha Waltz in collaboration with artist and fashion designer Iris van Herpen and light designer Urs Schoenebaum in Berlin, Germany on June 8, 2017. (Photo by Stefanie Loos/Reuters)

This unidentified teenager found Elvis Presley “too much” when he appeared at the Philadelphia Arena in Philadelphia, Pa., on April 6, 1957. (Photo by Bill Ingraham/AP Photo)

This photo provided by the Alameda County Sheriff's Office shows a man who was possibly trying to burglarize an abandoned Chinese restaurant in San Lorenzo, Calif., trapped in a grease vent before he was rescued Wednesday, December 12, 2018. Officials say he had been trapped for two days. Deputies and firefighters were called to the vacant building on Wednesday after someone heard cries for help. The sheriff tweeted that the man was trespassing and possibly trying to burglarize the empty restaurant. (Photo by Alameda County Sheriff's Office via AP Photo)

Nature, singles winner: Frogs with their legs severed struggle to the surface, surrounded by frogspawn, after being thrown back into the water in Covasna, Romania. (Photo by Bence Mate/World Press Photo 2019)

Jim Mahoney looks out from his yard towards the construction of the Foxconn manufacturing complex, after he and his wife Kim refused to sell their home and property to Foxconn, in the Racine County city of Mt. Pleasant, Wisconsin, U.S., July 27, 2019. (Photo by Brian Snyder/Reuters)