Quoting from my previous comment:

Special District Level: This is where the complexity truly explodes. There are thousands of “special taxing districts” (e.g., transit districts, school districts, stadium districts, hospital districts, fire districts, etc.) that can overlap city and county lines, each adding its own fractional sales tax rate. A single street could literally have different sales tax rates on opposite sides due to these overlapping districts.

Is there anyplace in Europe where sales tax is THAT level of convoluted, on top of city, county, and state levels?