Today I was looking for something in wikipedia and I found an interesting contest promoted there.
I don't know if that working only in Russia or in all the world. Even using vpn it's saying :
Welcome to Wiki Loves Earth in Russia 2020!
They ask to take a picture of a natural monuments in Russia and upload them to Wikimedia Commons. That should be done before july 2020.
For more details read here : https://commons.m.wikimedia.org/wiki/Commons:Wiki_Loves_Earth_2020_in_Russia
You can also check wikipedia, maybe they have the same contest for each country.