Common tourist places during tourist season are usually the worst. I took a 10 day trip to Paris one summer and it was a mix of the most popular tourist places (Louvre, Eiffel tower, etc) and some underground shit my sister found.
Every tourist place was jam packed with annoying tourists, costly and had tons of scammers surrounding it. Every less known place was really awesome, aside from one sketchy neighborhood we had to walk through where we were followed for a while.
I’d also say that Northern Europe has generally been much more pleasant to travel through, for me.