compare Poland's avg landscape to Croatia, Greece, Switzerland, Spain, Italy, France, Portugal......no comparison.
Come on, Poland isn't average at all. Look at the Tatra mountains - they're every bit as impressive as the Alps and so on. The lakes here are so numerous - again - not average. Forests? Poland does exceptionally well there, especially because of Bialowieza. And the Baltic Sea coast isn't too bad as well.
Let's see -
Croatia : stunning coastline, but rather dull and poor outside of that. The area in the North (for instance, when you drive from Zagreb to Slavonski Brod) is exceptionally dull with absolutely nothing of interest except a few minefields.
Greece? Well...if endless nightclubs and bars full of drunken Brits are your thing..
Switzerland? Granted, the mountains are impressive. But the cities are soulless, and apart from Lake Geneva, there's not much else in the way of beauty.
Spain? Have you actually been to Spain? It's mostly empty desert - nothing impressive at all. The Sierra Nevada is impressive, but the coastline is pretty poor.
Italy? It's similar to Poland.
France? It has mostly everything, yes.
Portugal is ugly as **** - too much tourist development and little else.
If you think Poland is "average", then you didn't travel very much here. The only thing where Poland rates incredibly badly is in the towns and cities.