Photochromes are vibrant and nuanced prints hand-coloured from black-and-white negatives. Created using a process pioneered in the 1880s, these images offer a fascinating insight into the world when colour photography was still in its infancy. A Tour of the World in Photochromes is at the Swiss Camera Museum, Vevey, until 21 August. Here: Street food in the Strada del Porto in Naples, Italy, 1899. (Photo by Swiss Camera Museum/The Guardian)

In this Wednesday, August 20, 2014 photo released by Red Bull, Maikel Melero of Spain warms up prior to the fifth stage of the Red Bull X-Fighters World Tour in the South African savanna of Pretoria, South Africa. (Photo by Joerg Mitter/AP Photo/Red Bull)

People spray water in the street ahead of “Songkran”, the annual Thai New Year water-throwing festival, in Kowloon City, Hong Kong, China, 09 April 2017. The pouring of water is a key element in the festival as it represents purification and the washing away of one's sins and bad luck for the year. The event also includes a “Miss Songkran” pageant where contestants are clothed in traditional Thai dress, and a winner is crowned. This year's “Songkran” will begin in Thailand on 13 April 2017. (Photo by Alex Hofford/EPA)

A model showcases Jaton designs during the Fashion x Art at NGV Runway at the Ian Potter Centre on November 16, 2021 in Melbourne, Australia. (Photo by Daniel Pockett/Getty Images)

A tourist pets a cat before the “Horus protects Ramses II as a child”, dating to the reign of the Ancient Egyptian New Kingdom pharaoh (1303-1213 BC), at the Egyptian Museum in the centre of Egypt's capital Cairo on October 19, 2022. (Photo by Amir Makar/AFP Photo)

A man sleeps at Beirut's Corniche, a seaside promenade, in Lebanon May 2, 2016. (Photo by Alia Haju/Reuters)

Isabella Ferrari and Ben Ra pose for a photograph taken by Jacob deBlecourt at the City of Boston's Pride Kickoff event, celebrating the start of National LGBTQ+ Pride Month, in Boston, Massachusetts, U.S., June 1, 2022. (Photo by Brian Snyder/Reuters)

Revellers celebrate New Year's Day in central Moscow, Russia, January 1, 2016. (Photo by Tatyana Makeyeva/Reuters)