Aleksuu
Hello! My country has two location-based stamps and I would be happy if you could add one more. Here are my suggestions:
A stamp with our flag (red, yellow, blue)
Corvin Castle - one of the largest castles in Europe and is featured as one of the Seven Wonders of Romania
https://en.wikipedia.org/wiki/Corvin_Castle
Rock sculpture of Decebalus - considered the tallest rock sculpture in Europe and the sixth largest in the world (featured as one of the Seven Wonders of Romania)
https://en.wikipedia.org/wiki/Rock_sculpture_of_Decebalus
Peleș Castle - another castle featured as one of the Seven Wonders of Romania
https://en.wikipedia.org/wiki/Peleș_Castle
Palace of Parliament - the heaviest building in the world and the second largest administrative building in the world (featured as one of the Seven Wonders of Romania)
https://en.wikipedia.org/wiki/Palace_of_the_Parliament
The Sphinx of Romania - natural rock formation in the Bucegi Natural Park
https://en.wikipedia.org/wiki/Sphinx_(Romania)
Also, a special day stamp about:
Mărțișor - a celebration at the beginning of spring, on March the 1st in Romania and Moldova
https://en.wikipedia.org/wiki/Mărțișor