BOLOGNA-Basilica di S.Stefano |
Postcards is wonderful way to discover world culture,every day i wish to find a new card in mailbox, it's amazing.
Lake Baikal |
Lake Baikal is an immense freshwater expanse of 31,722 square kilometres under UNESCO protection. It is known for its unique ecosystems and pristine drinking water. Due to climate change, the lake's surface temperature during the summers of recent years has increased significantly, triggering numerous surface eutrophication effects and threatening the biodiversity of this fragile and precious ecosystem.
Source:
https://www.copernicus.eu/fr/node/10997
Stamps: