Nazi dictator Adolf Hitler greets supporters at a May Day gathering in the Olympic Stadium, Berlin. (Photo by Keystone). 1st May 1938

Dancers perform a routine at the Renault display at the Beijing International Automotive Exhibition in Beijing, Tuesday, April 26, 2016. (Photo by Mark Schiefelbein/AP Photo)

Children play in their grandmother's garden in a suburb of Budapest, Hungary, Thursday, July 21, 2022. Hungary has experienced several heat waves since mid June with day-time temperatures rising to 40 degrees Celsius and remaining at tropical levels through the night. In fact, the country recently shattered record for its hottest night ever when temperature of 25.4 C was measured in Budapest on July 26. (Photo by Anna Szilagyi/AP Photo)

Dancers perform on stage during Diwali celebrations in Leicester, Britain November 11, 2015. (Photo by Darren Staples/Reuters)

The Virgin of El Rocio is carried by pilgrims during a procession around the shrine of El Rocio in Almonte, southern Spain, May 25, 2015. Every spring hundreds of thousands of devotees converge at a shrine to pay homage to the Virgin del Rocio during an annual pilgrimage which combines religious fervour and festive colour. (Photo by Marcelo del Pozo/Reuters)

This image of a young bareback rider was taken in the village of Palenque de San Basilio, in Colombia’s Bolívar department. Founded by freed slaves in the 17th century, it became the first free town in the Americas, following a decree by the Spanish crown. Most of today’s inhabitants are direct descendants of those slaves and have preserved many of their customs, including their own language, Palenquero. (Photo by Sebastián Suki Beláustegui/The Guardian)

A musher races with his dogs during a sled dog European Championship in Venek November 22, 2014. (Photo by Laszlo Balogh/Reuters)