Aerial photo taken on Nov. 19, 2021 shows autumn scenery at the Bosland Nature Reserve in Limburg Province, Belgium. (Xinhua/Zhang Cheng)
Aerial photo taken on Nov. 19, 2021 shows autumn scenery at the Bosland Nature Reserve in Limburg Province, Belgium. (Xinhua/Zhang Cheng)
Aerial photo taken on Nov. 19, 2021 shows autumn scenery at the Bosland Nature Reserve in Limburg Province, Belgium. (Xinhua/Zhang Cheng)
Aerial photo taken on Nov. 19, 2021 shows autumn scenery at the Bosland Nature Reserve in Limburg Province, Belgium. (Xinhua/Zhang Cheng)
Aerial photo taken on Nov. 19, 2021 shows autumn scenery at the Bosland Nature Reserve in Limburg Province, Belgium. (Xinhua/Zhang Cheng)
A man rides a bike at the Bosland Nature Reserve in Limburg Province, Belgium, Nov. 19, 2021. (Xinhua/Zhang Cheng)
Aerial photo taken on Nov. 19, 2021 shows autumn scenery at the Bosland Nature Reserve in Limburg Province, Belgium. (Xinhua/Zhang Cheng)
People walk at the Bosland Nature Reserve in Limburg Province, Belgium, Nov. 19, 2021. (Xinhua/Zhang Cheng)