Sеx worker Geraldine, wearing cat make-up, excitedly holds up a dress she is thinking of buying from a street vendor, so that her partner, sitting nearby to keep her company, can see it, as she waits for clients outside the Revolution subway station, in Mexico City, Saturday, March 13, 2021. According to Geraldine, 30, the pandemic has cut clients and increased risks to the sеx workers but has also brought out more assistance for them too, both from dedicated organizations such as the activist group Brigada Callejera or “The Street Brigade” and from individuals who have donated food or clothing. (Photo by Rebecca Blackwell/AP Photo)

A tiger jumps while being trained at the Tiger Temple in Kanchanaburi province, west of Bangkok, Thailand, February 25, 2016. Thailand's controversial Tiger Temple, dogged for years by talk that it supplies the black market and mistreats its animals, is fighting to keep the big cats after wildlife authorities rejected a bid to extend a zoo licence that expired in 2013. The Buddhist temple, home to more than 100 tigers, has been investigated for suspected links to wildlife trafficking and wildlife activists have accused it of illegal breeding of the animals. Thai wildlife authorities have sent ten of the temple's tigers to a wildlife sanctuary. But the temple, which bills itself as a wildlife sanctuary, has denied links to illegal trafficking, and wants to hold on to its tigers. (Photo by Chaiwat Subprasom/Reuters)

In this Thursday, December 1, 2016 photo, Cat Bigney, part of the Oglala Native American tribe, waits on the shore of the Cannonball river for travelers to arrive by canoe at the Oceti Sakowin camp where people have gathered to protest the Dakota Access oil pipeline in Cannon Ball, N.D. So far, those at the camp have shrugged off the heavy snow, icy winds and frigid temperatures. But if they defy next week's government deadline to abandon the camp, demonstrators know the real deep freeze lies ahead. Life-threatening wind chills and towering snow drifts could mean the greatest challenge is simple survival. (Photo by David Goldman/AP Photo)

The London Eye is a giant Ferris wheel on the South Bank of the River Thames in London. Also known as the Millennium Wheel, its official name was originally the British Airways London Eye, then the Merlin Entertainments London Eye, and since January 2011, the EDF Energy London Eye.

A leopard seal feeds Paul Nicklen a penguin. (Photo by Paul Nicklen/National Geographic). Antarctic Peninsula, 2011

“When We're Gone... Memories Of Us Are All That Remain”, 2011. (Photo by: Trini61; Source: Flickr)

“Valentine Shmalentine”, 2011. (Photo by GillyFace)

Zoee Heath of New South Wales competes in the womens U18 discus throw during day two of the Australian Junior Athletics Championships at Sydney Olympic Park Athletic Centre on March 11, 2011 in Sydney, Australia.