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)

A man pushes her daughter on a cart as they shop at a market in Seoul, South Korea, July 26, 2016. (Photo by Kim Hong-Ji/Reuters)

Members of the Indonesian Presidential Security Forces (Paspampres) show their skills during the simulation of a terrorist attack in Jakarta, Indonesia, 29 December 2016. According to reports in local media the Indonesian security forces have already arrested 21 terrorists suspects and fatally shot five of them, who were allegedly planning attacks in the Indonesian capital during the Christmas and New Year's Eve celebrations this year. The presentation was shown on the occasion of a visit by Indonesian President Joko Widodo and a delegation to the Paspampres headquarters in Jakarta. (Photo by Bagus Indahono/EPA)

People applaud as a delivery robot departs from the Nihonbashi Post Office to deliver traditional New Year's Day cards, during a ceremony in Tokyo on January 1, 2023. (Photo by JIJI Press/AFP Photo)

Despite the mild 14°С shoppers and commuters battle against the wind and rain on Waterloo Bridge, London on December 28, 2022. (Photo by Alex Lentati/London News Pictures)

A dress rehearsal for the world premiere of Birmingham Royal Ballet’s Luna at the Hippodrome in Birmingham, UK on October 2, 2024. (Photo by Elliott Franks/The Times)

A woman rests on a pile of plush toys at IKEA store in the shopping district of Causeway Bay in Hong Kong on November 3, 2024. (Photo by Mladen Antonov/AFP Photo)

A vendor prepares her stall as she waits for customer at a street market in Taunggyi, Myanmar's northeast Shan Sate on November 13, 2024. (Photo by Sai Aung Main/AFP Photo)