A competition, now in its 43rd year, dedicated to showcasing the beautiful and bizarre as seen under a light microscope attracted over 2,000 entries from 88 countries. Here: Honorable Mention by Emre Can Alagöz, Istanbul, Turkey: The eyes of a jumping spider, magnified 6x. (Photo by Emre Can Alagöz/2017 Nikon Small World Photomicrography Competition)

Dogs and their owners dressed in Halloween costumes parade during the annual Haute Dog Howl'oween event in Long Beach, California on October 30, 2016. The parade, which claims to be the largest Halloween dog event in the world, sees hundreds of dogs and their owners dressed in colorful costumes celebrating the festival. (Photo by Mark Ralston/AFP Photo)

Two girls run through the heavy rain as people head out to Wind Street in Swansea, Wales to celebrate Halloween on Monday, October 31, 2022. (Photo by Robert Melen)

British singer-songwriter Rita Ora seen attending Jonathan Ross Halloween party at The House of Koko on October 31, 2022 in London, England. (Photo by Ricky Vigil M/GC Images)

A motorcyclist pops a wheelie as a woman wearing a devil costume holds on, during a night rally celebrating Halloween, in Caracas, Venezuela, Saturday, October 29, 2022. (Photo by Ariana Cubillos/AP Photo)

Pumpkins and a mock up skull are seen ahead of Halloween at Wilmersdorfer Strasse shopping street, as the coronavirus disease (COVID-19) outbreak continues, in Berlin, Germany, October 26, 2020. (Photo by Fabrizio Bensch/Reuters)

Gizzard, a chihuahua is held by his owner at the 31st Annual Tompkins Square Halloween Dog Parade in New York, U.S., October 23, 2021. Last year the parade was cancelled due to the coronavirus pandemic. (Photo by Caitlin Ochs/Reuters)

English television, radio presenter and DJ Maya Jama was alluring as Medusa at Maya Jama's annual Halloween party on October 30, 2021 in London, England. (Photo by mayajama/Instagram)