A Felix the Cat balloon and other parade floats and balloons are led down Broadway during the annual Macy's Thanksgiving Day Parade; ca. 1900s, Broadway, Manhattan, New York City, New York State, USA. (Photo by Underwood & Underwood/Corbis)

Wedges of an orange generate enough current and electrical juice – 3.5 volts – to power an LED. The fruit’s citric acid helps electrons flow from galvanized nails to copper wire in this 14-hour exposure. This image was published in September’s Visions of Earth, a trio of photos that appear in each issue of National Geographic. (Photo by Caleb Charland/National Geographic)

In this photo taken with long time exposure, a woman wears a hat at Churchill Downs before the 145th running of the Kentucky Derby horse race Saturday, May 4, 2019, in Louisville, Ky. (Photo by Charlie Riedel/AP Photo)

A solders in ceremonial attire sweats as he waits outside Suddhaisavarya Prasad Hall, in which Thailand's King Maha Vajiralongkorn scheduled to grant a public audience in Bangkok, Thailand, Monday, May 6, 2019. King Maha Vajiralongkorn was officially crowned amid the splendour of the country's Grand Palace, taking the central role in an elaborate centuries-old royal ceremony that was last held almost seven decades ago. (Photo by Gemunu Amarasinghe/AP Photo)

Participants from Newar community in traditional attire, dance during the Newari New Year parade that falls during the Tihar festival, also called Diwali, in Kathmandu, Nepal October 31, 2016. (Photo by Navesh Chitrakar/Reuters)

A worker fills a public bus with diesel as the bus driver and passengers look on, at a fuel station in Kolkata, India, February 1, 2017. (Photo by Rupak De Chowdhuri/Reuters)

Sergei Bobkov, 59, paints Siberian cedar nut oil onto a life-size sculpture of Pallas's Cat, also known in Russia as Manul Cat, which he made from Siberian cedar wood shavings using more than 700 thousand pieces over four years, in the village of Kozhany, southwest of the Siberian city of Krasnoyarsk, Russia, April 28, 2017. (Photo by Ilya Naymushin/Reuters)

The overall winner of the 2013 Red Bull Illume photography competition from Lorenz Holder. (Photo by Lorenz Holder/Red Bull)