Last Saturday I got two postcards: one from Estonia and one from Spain.
The card from Estonia shows the Fat Margaret Tower in Tallinn. The Fat Margaret Tower is a part of Tallinn's medieval city fortification. Today it houses the Estonian Martime Museum.
With a nice matching stamp:
My Gift to Estonia - Children’s Drawing Competition (from set of three) (issued 01-09-2018)
with First Day Special Postmark
Thank You very much Jaan!