The smallest Indian city that (almost) all Indians would know would be the hill resort of Shimla (pop 170,000). However, this is because a place is expected to have a population of about 100,000 to be declared a 'city', so for example New Delhi is only a town.

PANAMA!

Van Halen, spring break, population 35,600.

Probably Dildo, Newfoundland.

You know why.

Edit: Actually, I think Dawson City is smaller. It's famous for being a big city back during the gold rush, despite being up near the arctic circle.

I legitimately though Oregon was a State, I didn't know it was also a city.

From my country I'm going to be generous and say Barcelona. Second biggest city here. I doubt next bigger cities are universally known.

Davos switzerland. (WEF) (10k) Mariana brazil. (Known for a ecological disaster). (60k)

For Mexico, maybe Tecate, which is a city in the state of Baja California, and its know for a beer of the same name. Cant really think of anything that is smaller and more famous.

Definitely Altschauerberg, home of the country's most prolific performance artist

Well there are only really two where I'm at. Smallest one probably most well known for being the setting for a comedy TV show or it's wall.

The smallest settlement listed on Wikipedia is known for a bridge.