People walk through a park in Gwacheon, just south of Seoul, on Oct. 18, 2020. (Yonhap)
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This photo, taken on Oct. 16, 2020, shows the tropical greenhouse built at a national arboretum in Sejong, central South Korea, one day ahead of its opening.

A man buys goods without the help of a cashier during a demonstration of the smart supermarket system in Seoul on Oct. 15, 2020.

Han Bok-ryo, chief of the Institute of Korean Royal Cuisine, makes royal court cuisine by using various traditional sauces and condiments at Gyeongbok Palace, the main royal palace during the Joseo

A traditional Korean dance is performed at Gyeonghoeru Pavilion at Gyeongbok Palace in central Seoul on Oct.

Parents of aspiring college students take part in a Buddhist prayer in front of "Gatbawi" Buddhist statue, or Stone Hat Buddha, on Mount Palgong in the southeastern city of Gyeongsan on Oct.

Activists and citizens hold a rally in front of the Mitte district office in Berlin on Oct.

An ancestral rite is demonstrated during a press event to promote a night tour program at the West Five Royal Tombs in Goyang, northwest of Seoul, on Oct. 13, 2020. (Yonhap)
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People walk on a path with colorful autumn foliage along the walls of Deoksu Palace in Seoul on Oct. 12, 2020.

This photo, provided by Haemil, a students' club at Cheongshim International Academy in Gapyeong, Gyeonggi Province, on Oct.