This photo taken on Feb. 27, 2023 shows a Laotian langur at the Rock Viewpoint in Khounkham District, Khammouane Province, Laos. The Rock Viewpoint is one of the top attractions in the Khammouane Province of Laos. (Photo by Kaikeo Saiyasane/Xinhua)
This photo taken on Feb. 24, 2023 shows the Rock Viewpoint in Khounkham District, Khammouane Province, Laos. The Rock Viewpoint is one of the top attractions in the Khammouane Province of Laos. (Photo by Kaikeo Saiyasane/Xinhua)
A tourist takes pictures at the Rock Viewpoint in Khounkham District, Khammouane Province, Laos, Feb. 26, 2023. The Rock Viewpoint is one of the top attractions in the Khammouane Province of Laos. (Photo by Kaikeo Saiyasane/Xinhua)
This photo taken on Feb. 26, 2023 shows Laotian langurs at the Rock Viewpoint in Khounkham District, Khammouane Province, Laos. The Rock Viewpoint is one of the top attractions in the Khammouane Province of Laos. (Photo by Kaikeo Saiyasane/Xinhua)
Tourists visit the Rock Viewpoint in Khounkham District, Khammouane Province, Laos, Feb. 26, 2023. The Rock Viewpoint is one of the top attractions in the Khammouane Province of Laos. (Photo by Kaikeo Saiyasane/Xinhua)