World's Greatest Swimming Pools: Four Seasons, Serengeti Pool, Tanzania. A show of elephants, buffalo and baboons awaits thanks to an active watering hole below the free-form infinity pool at this plush hideaway inside Serengeti National Park. Bonus: Because of infrared technology at the hole, guests can be notified on their bedroom TV when animals are approaching. When you've got word of wildlife on the horizon, catch them from your private terrace – or head back to the pool. (From $1,650). (Photo by Four Seasons)

People dressed in underwear run into a store to pick free clothes during a promotional event starting the summer sale at an outlet of the Desigual clothing retailer in Berlin, June 20, 2014. Desigual treated the first 100 customers with a free outfit if they stripped down to their underwear for the first day of the outlet's summer sale. (Photo by Thomas Peter/Reuters)

A model presents creations from the 2023 Spring/Summer collection by Japanese designer Lim Asafuji for the label “pays des fees” during the Tokyo Fashion Week in Tokyo, Japan, 01 September 2022. The presentation of the 2023 Spring/Summer collections runs from 29 August to 03 September. (Photo by Franck Robichon/EPA/EFE)

There is an endless bounty of eye-catching gemstones throughout the world and this spectacular boulder opal is one unique beauty that looks like a shimmering crystal encased in a tree fossil. Its opalescent sheen seeps through the cracks of the seemingly wooden rings in lustrous hues of emerald green and aqua blue. Like something out of a fairy tale, the triangular piece radiates through an organic pattern mimicking the growth rings of tree.

Judson Huss (8 May 1942 – 25 July 2008), born Clifford Judson Huss, was an American-born painter and sculptor of fantastic art. Photo: Judson Huss – “Summer” (please click to enlarge).

The “Summer House” season 7 premiere party at The Ready Rooftop in the second decade of February 2023. (Photo by Dan Nilson)

Girls sits on a bench during summer at the Central Park in New York, United States, 2011. (Photo by An Rong Xu)

Paramilitary policemen take part in a summer training in Shenzhen, Guangdong province, China, June 27, 2016. (Photo by Reuters/China Daily)