Photographer Andy Hall joins the thousands of fans from west Africa who have gathered for Baaba Maal's annual Blues du Fleuve festival in Senegal. Here: Dancers wait to perform on stage. (Photo by Andy Hall/The Observer)

Wrestlers perform at an all female wrestling event in London. England on August 17, 2017. (Photo by Neil Hall/Reuters)

Cheerleaders wait to perform before the New Year's Day parade in London, Britain January 1, 2017. (Photo by Neil Hall/Reuters)

David Hall’s photographs of scenery and creatures off the coast of Canada in the Pacific Northwest portray serenity under the water, which belie the extreme challenges he faces to get his images. For each shoot, Hall wears a dry suit, a neoprene body suit that covers all of his body but his head and traps air inside to keep him warm. Water temperature in Canada’s British Columbia typically ranges between 45 and 50 degrees Fahrenheit. Photo: Moon jellyfish and cross jellies. (Photo by David Hall)

This Hawaiian cat sanctuary has created an “island paradise” for the state’s stray cats. Although most people would take a trip to one of the Hawaiian Islands’ many heavenly sights, Andrew Marttila, 32, and his partner, Hannah Shaw, 30, wanted to visit something more unusual. They decided to take a trip to the Lanai Cat Sanctuary, which is currently home to more than 500 felines. Here: Kitten Lady, 30, is surrounded by rescued cats at the the Lanai Cat Sanctuary in Hawaii. (Photo by Andrew Marttila/Caters News Agency)

Kanphitcha Sungsuk, 21, (C), lines up with young men to speak to officers during an army draft held at a school in Klong Toey, the dockside slum area in Bangkok, Thailand, April 6, 2017. Thailand is widely seen as a paradise for gay and transgender people, but many complain of being treated as second-class citizens and the obligation to respond to the draft can be a nightmare when they turn 21. (Photo by Athit Perawongmetha/Reuters)

Dongchuan is a rural place located in the area of Wumeng Mountains. This place became one of the most favored destination spots for Chinese photographers all because of its red soil. The Wumeng’s scenery was first discovered in mid-90s. The first photographers who came here shot some award-winning photos, which made them keep the location of this place a secret. With time, however, more people found out about this place, making them want to visit these arid mountains. The contrasting red soil, yellow buckwheat, and brilliant blue skies make this place a paradise for photographers.

A woman is tattooed during the Great British Tattoo Show in Alexandra Palace in north London, Britain May 23, 2015. (Photo by Neil Hall/Reuters)