Best Hyatt stays in Europe that are actually well located (and worth it)?

Globalist here, planning a special anniversary trip in April and struggling a bit with Hyatt’s Europe footprint.

Looking for a historic, walkable city with art and culture where the Hyatt is in a genuinely nice, scenic area, not a business district or far outside the center. Budget is ideally under $500/night.

We’ve both been to different parts of Europe already, so country is wide open. Italy is a favorite, but a lot of the Hyatts seem poorly located. Paris options I like are sadly way above budget.

Would love recommendations where going Hyatt actually feels like the right call vs a local boutique or even Marriott. Bonus if Cat 4 certs or Suite Upgrade Awards work well there.

I know this is subjective, just curious what others here genuinely loved.