This photo, provided by the Cultural Heritage Administration, shows a nighttime tour program at Gyeongbok Palace in central Seoul in 2022.

This photo, taken on April 3, 2023, shows a sand sculpture bearing the image of an emblem for the 2030 World Expo in the South Korean port city of Busan on the city's Haeundae Beach.

Gwanghwamun Square in central Seoul is illuminated on March 30, 2023, as LED flowers light up to signify South Korea's aspiration to host the 2030 World Expo in the southern port city of Busan.

People walk past the "Wishing Tree," an installation designed to express Busan's desire to host the 2030 World Expo, at BEXCO Square in the country's largest port city, 325 kilometers southeast of

Gyeongbok Place in downtown Seoul bustles with foreign tourists on March 27, 2023. (Yonhap)
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Moongcho, the mascot of the 2024 Winter Youth Olympic Games, waves during a ceremony to appoint the event's promotional envoys at a Seoul hotel on March 24, 2023. The event is set for Jan. 19-Feb.

People walk under cherry blossoms in the naval port of Jinhae, about 400 kilometers southeast of Seoul, on March 24, 2023, one day ahead of the Jinhae Cherry Blossom Festival, the biggest of its ki

Young diplomats from 25 countries pose for a photo while wearing the traditional Korean costume, hanbok, at the Institute of International Education of Kyunghee University in Seoul on March 23, 202

The Light of Immortality -- three large light pillars created by 55 lights -- illuminates the sky over the War Memorial of Korea in Seoul's Yongsan Ward on March 21, 2023.