I remember when I quit smoking, having my body cleared out, my sense of smell was heightened. I walked got into Walmart and was struck with an insanely strong urine smell. I was a good distance away from the bathrooms.
So my answer is Walmart and grocery stores.

Gas stations and hole in the wall bars. It’s a tie

railroad stations

Most chinese restaurants..even fancy ones!

the answer is in the question XD

They Hong Kong... The real pits!

Worse than gas station bathrooms ?

I agree. Walmart is pretty bad