This 1950s photo provided by the Estate of Vivian Maier and John Maloof Collection shows Maier in a self-portrait as she looks into a storefront wearing a hat in New York. New research about Maier shows the enigmatic Chicago nanny was obsessive about honing her skills as a photographer starting in 1950. (Photo by Vivian Maier/Estate of Vivian Maier and John Maloof Collection via AP Photo)

Elysia Gonzalez, right, helps Caterine Sanchez adjust her hat inside the ladies room ahead of the Belmont Stakes horse race, Saturday, June 10, 2023, at Belmont Park in Elmont, N.Y. (Photo by Mary Altaffer/AP Photo)

Grace Chon has put together a series of portraits featuring her 10-month-old son and her rescue dog. In each picture, the dog and baby are wearing matching apparel with party hats, baseball caps and sunglasses, adding fun elements to these adorable portraits.

Linda Rooks from Yeovil in Somerset, a hostess at Whipsnade Zoo, wears “Tanga” a 7fy long python as a hat and scarf. (Photo by William Vanderson/Getty Images). 1965

A .44 Colt Dragon with a traditional Cowboy's hat. This weapon was originally used in the Mexican War of 1846-8 and it is typical of the type used in the “Wild West” of America. (Photo by Orlando /Three Lions/Getty Images). Circa 1950

Suited volunteers in bowler hats stand in the surf holding umbrellas aloft at sunrise at Bondi Beach on June 27, 2010 in Sydney, Australia. The human installation is the latest in a series of “surreal human sculptures” by artist Andrew Baines (Photo by Brendon Thorne/Getty Images)

A Chinese vendor wears a rooster hat as he smokes a cigarette at his souvenir stall at a fair at Temple of Earth, on the eve of Chinese New Year February 8, 2005 in Beijing, China. Chinese started February 8, to celebrate the New Year of the Rooster. (Photo by Andrew Wong/Getty Images)

The first legal wedding ceremony in history was performed in a hot tub when Leslie Davis, 23, and Richard Bustardo, 29, got married during the Backyard Living Show in Los Angeles, March 26, 1975. The ceremony was held in a five-foot hot tub, with the bride wearing a bikini and the groom attired in swimming trunks and top hat. In background is best man Arnold Holland and bridesmaid Bonnie Heckenbach, who joined the couple in the same hot tub. Officiating is Betty Jane Shaw, left. (Photo by Harold Filan/AP Photo)