Aerial photo taken on May 21, 2021 shows a view of the Vistula river in Warsaw, Poland. The Middle Vistula Valley is included in the EU's Natura 2000 network of protected areas with unique habitats for endangered species of flora and fauna. (Str/Xinhua)
Aerial photo taken on May 21, 2021 shows a view of the Vistula river in Warsaw, Poland. The Middle Vistula Valley is included in the EU's Natura 2000 network of protected areas with unique habitats for endangered species of flora and fauna. (Str/Xinhua)
Aerial photo taken on May 21, 2021 shows a view of the Vistula river in Warsaw, Poland. The Middle Vistula Valley is included in the EU's Natura 2000 network of protected areas with unique habitats for endangered species of flora and fauna. (Str/Xinhua)
Aerial photo taken on May 21, 2021 shows a view of an island in the Vistula river in Warsaw, Poland. The Middle Vistula Valley is included in the EU's Natura 2000 network of protected areas with unique habitats for endangered species of flora and fauna. (Str/Xinhua)