There was this market that I went to in another country. They has everything vegetables, chicken you name it. One thing they were known for was fish. This place was outside and you could go there any time. It was open 24/7 year round. This place never closed. There was this strange old fish smell that was fish juice that went onto the ground and was just left there. This was the worst smell. In my travels I have come across some pretty bad smells. Bathrooms that have not ever been cleaned from the 1940s, you name it! This smell was the worst. Like 20 years of old fish juice just laying on the ground with no one to clean it up. It is really hard to describe as nothing else is like it. Maybe an old rotten meat smell mixed with a sweet old rag smell. UHHHHHHHH.